<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE doc SYSTEM "doc.dtd">
<doc title="{[project]} Releases" toc-number="n">
    <description>The {[project]} Releases detail each version of the software and lists the changes made in each version.</description>

    <intro>
        <text><backrest/> release numbers consist of two parts, major and minor.  A major release <i>may</i> break compatibility with the prior major release, but <proper>v2</proper> releases are fully compatible with <proper>v1</proper> repositories and will accept all <proper>v1</proper> options.  Minor releases can include bug fixes and features but do not change the repository format and strive to avoid changing options and naming.

        Documentation for the <proper>v1</proper> release can be found <link url="{[backrest-url-base]}/1">here</link>.

        The notes for a release may also contain <quote>Additional Notes</quote> but changes in this section are only to documentation or the test suite and have no direct impact on the <backrest/> codebase.</text>
    </intro>

    <release-list>
        <release date="2019-02-09" version="2.10" title="Bug Fixes">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="mibiio"/>
                        </release-item-contributor-list>

                        <p>Add unimplemented <proper>S3</proper> driver method required for <cmd>archive-get</cmd>.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="james.chanco.jr"/>
                        </release-item-contributor-list>

                        <p>Fix check for improperly configured <br-option>pg-path</br-option>.</p>
                    </release-item>
                </release-bug-list>

                <release-development-list>
                    <release-item>
                        <p>JSON improvements.  Optimize parser implementation.  Make the renderer more null tolerant.</p>
                    </release-item>

                    <release-item>
                        <p>Automatically adjust <br-option>db-timeout</br-option> when <br-option>protocol-timeout</br-option> is smaller.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>
        </release>

        <release date="2019-01-30" version="2.09" title="Minor Improvements and Bug Fixes">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="vidhya.gurumoorthi"/>
                            <release-item-ideator id="joe.ayers"/>
                            <release-item-ideator id="douglas.j.hunley"/>
                        </release-item-contributor-list>

                        <p>Fix issue with multiple async status files causing a hard error.</p>
                    </release-item>
                </release-bug-list>

                <release-improvement-list>
                    <release-item>
                        <p>The <cmd>info</cmd> command is implemented entirely in C.</p>
                    </release-item>

                    <release-item>
                        <p>Simplify <cmd>info</cmd> command text message when no stanzas are present by replacing the repository path with <quote>the repository</quote>.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="douglas.j.hunley"/>
                        </release-item-contributor-list>

                        <p>Add <id>_DARWIN_C_SOURCE</id> flag to Makefile for <proper>MacOS</proper> builds.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="bruno.friedmann"/>
                        </release-item-contributor-list>

                        <p>Update address lookup in C TLS client to use modern methods.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="ucando"/>
                        </release-item-contributor-list>

                        <p>Include Posix-compliant header for <code>strcasecmp()</code> and <code>fd_set</code>.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Add remote storage objects.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>ProtocolClient</code> object and helper functions.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>Exec</code> object.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>IoHandleRead</code> and <code>IoHandleWrite</code> objects.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>cfgExecParam()</code> to generate parameters for executing commands.</p>
                    </release-item>

                    <release-item>
                        <p>Ignore <id>SIGPIPE</id> signals and check <id>EPIPE</id> result instead.</p>
                    </release-item>

                    <release-item>
                        <p>Function log macro improvements.  Rename FUNCTION_DEBUG_* and consolidate ASSERT_* macros for consistency. Improve <code>CONST</code> and <code>P</code>/<code>PP</code> type macro handling. Move <code>MACRO_TO_STR()</code> to <file>common/debug.h</file>. Remove unused type parameter from <code>FUNCTION_TEST_RETURN()</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Make the <proper>C</proper> version of the <cmd>info</cmd> command conform to the <proper>Perl</proper> version.</p>
                    </release-item>

                    <release-item>
                        <p>Improve accuracy of <code>strSizeFormat()</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>ioReadBuf()</code> to easily read into a buffer.</p>
                    </release-item>

                    <release-item>
                        <p>JSON improvements.  Allow empty arrays in JSON parser.  Fix null output in JSON renderer.  Fix escaping in JSON string parser/renderer.</p>
                    </release-item>

                    <release-item>
                        <p>Allocate extra space for concatenations in the <code>String</code> object.</p>
                    </release-item>

                    <release-item>
                        <p>Return <code>UnknownError</code> from <code>errorTypeFromCode()</code> for invalid error codes.</p>
                    </release-item>

                    <release-item>
                        <p>Update Perl repo rules to work when stanza is not specified.</p>
                    </release-item>

                    <release-item>
                        <p>Update <code>Storage::Local->list()</code> to accept an undefined path.</p>
                    </release-item>

                    <release-item>
                        <p>Null-terminate list returned by <code>strLstPtr()</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>kvMove()</code> and <code>varLstMove()</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Replace <code>FileOpenError</code> with <code>HostConnectError</code> in <code>TlsClient</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Allow string <code>Variant</code> objects to contain <code>null</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Rename <code>common/io/handle</code> module to <code>common/io/handleWrite</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>const VariantList *</code> debug type.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="heath.lord"/>
                        </release-item-contributor-list>

                        <p>Fix hard-coded repository path.</p>
                    </release-item>
                </release-bug-list>

                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="bruce.burdick"/>
                        </release-item-contributor-list>

                        <p>Clarify that encryption is always performed client-side.</p>
                    </release-item>

                    <release-item>
                        <p>Add examples for building a documentation host.</p>
                    </release-item>

                    <release-item>
                        <p>Allow <code>if</code> in manifest variables, lists, and list items.</p>
                    </release-item>
                </release-improvement-list>
            </release-doc-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <p>Move C module include in <file>test.c</file> above headers included for testing.</p>
                    </release-item>

                    <release-item>
                        <p>Allow primary <id>gid</id> for the test user to be different from <id>uid</id>.</p>
                    </release-item>

                    <release-item>
                        <p>Increase timeout in <id>storage/s3</id> module to improve reliability.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2019-01-02" version="2.08" title="Minor Improvements and Bug Fixes">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="matt.kunkel"/>
                        </release-item-contributor-list>

                        <p>Remove request for S3 object info directly after putting it.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="ronan.dunklau"/>
                        </release-item-contributor-list>

                        <p>Correct <br-option>archive-get-queue-max</br-option> to be <id>size</id> type.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="camilo.aguilar"/>
                        </release-item-contributor-list>

                        <p>Add error message when current user <id>uid</id>/<id>gid</id> does not map to a name.</p>
                    </release-item>

                    <release-item>
                        <p>Error when <br-option>--target-action=shutdown</br-option> specified for <postgres/> &lt; 9.5.</p>
                    </release-item>
                </release-bug-list>

                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="ronan.dunklau"/>
                        </release-item-contributor-list>

                        <p>Set TCP keepalives on <proper>S3</proper> connections.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="ryan.lambert"/>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Reorder <cmd>info</cmd> command text output so most recent backup is output last.</p>
                    </release-item>

                    <release-item>
                        <p>Change file ownership only when required.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="brad.nicholson"/>
                        </release-item-contributor-list>

                        <p>Redact <id>authentication</id> header when throwing <proper>S3</proper> errors.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Enable S3 storage and encryption for <cmd>archive-get</cmd> command in C.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Migrate local <cmd>info</cmd> command to C.</p>
                    </release-item>

                    <release-item>
                        <p>Add <proper>S3</proper> storage driver.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>HttpClient</code> object.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>TlsClient</code> object.</p>
                    </release-item>

                    <release-item>
                        <p>Add interface objects for <proper>libxml2</proper>.</p>
                    </release-item>

                    <release-item>
                        <p>Add encryption capability to <code>Info*</code> objects.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>IoFilter</code> interface to <code>CipherBlock</code> object.</p>
                    </release-item>

                    <release-item>
                        <p>Allow arbitary <code>InOut</code> filters to be chained in <code>IoFilterGroup</code>.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Add <code>infoBackup</code> object to encapsulate the <file>backup.info</file> file.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Improve JSON to <code>Variant</code> conversion and add <code>Variant</code> to JSON conversion.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Storage helper improvements.  Allow <code>NULL</code> stanza in storage helper.  Add path expression for repository backup.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Info module improvements.  Rename constants in <code>Info</code> module for consistency.  Remove <code>#define</code> statements in the <code>InfoPg</code> module to conform with newly-adopted coding standards.  Use cast to make for loop more readable in <code>InfoPg</code> module.  Add <code>infoArchiveIdHistoryMatch()</code> to the <code>InfoArchive</code> object.</p>
                    </release-item>

                    <release-item>
                        <p>Allow I/O read interface to explicitly request blocking reads.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="david.steele"/>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Improve error messages when info files are missing/corrupt.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Add <code>strSizeFormat()</code> to <code>String</code> object.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>strLstInsert()</code> and <code>strLstInsertZ()</code> to <code>StringList</code> object.</p>
                    </release-item>

                    <release-item>
                        <p>Rename <code>PGBACKREST</code>/<code>BACKREST</code> constants to <code>PROJECT</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Require <proper>S3</proper> key options except for <cmd>local</cmd>/<cmd>remote</cmd> commands.</p>
                    </release-item>

                    <release-item>
                        <p>Explicitly compile with Posix 2001 standard.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>ServiceError</code> for errors from a service that can be retried.</p>
                    </release-item>

                    <release-item>
                        <p>Conditional compilation of Perl logic in <file>exit.c</file>.</p>
                    </release-item>

                    <release-item>
                        <p>Merge <code>cipher.h</code> into <code>crypto.h</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Remove extraneous <code>use</code>/<code>include</code> statements.</p>
                    </release-item>

                    <release-item>
                        <p>Remove embedded semicolon from <code>String</code> constant macros.</p>
                    </release-item>

                    <release-item>
                        <p>Reduce debug level for <code>infoIni()</code> to test.</p>
                    </release-item>

                    <release-item>
                        <p>Return <code>IoFilterGroup *</code> from <code>ioFilterGroupAdd()</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Add coding standards for <code>String</code> constants.</p>
                    </release-item>

                    <release-item>
                        <p>Add missing <code>LOG_DEBUG()</code> macro.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="keith.fiske"/>
                        </release-item-contributor-list>

                        <p>Clarify when <br-option>target-action</br-option> is effective and <postgres/> version support.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="pritam.barhate"/>
                        </release-item-contributor-list>

                        <p>Clarify that region/endpoint must be configured correctly for the bucket.</p>
                    </release-item>

                    <release-item>
                        <p>Add documentation for building the documentation.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Add <code>admonitions</code> to all documentation renderers (HTML, PDF, Markdown and help text) and update <file>xml</file> files accordingly.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Add HTML table rendering and update PDF/Markdown renderers to support header-less tables. Add optional table captions.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Escape special characters in latex when not in a code block.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Base menu ordering on natural ordering in the manifest.</p>
                    </release-item>

                    <release-item>
                        <p>Replace keywords with more flexible if statements.</p>
                    </release-item>

                    <release-item>
                        <p>Pre-build containers for any <id>execute</id> elements marked <id>pre</id>.</p>
                    </release-item>

                    <release-item>
                        <p>Documentation may be built with user-specified packages.</p>
                    </release-item>

                    <release-item>
                        <p>Add Centos/RHEL 7 option to documentation build.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Allow custom logo for PDF documentation.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Modify general document elements to allow any child element.</p>
                    </release-item>

                    <release-item>
                        <p>Use absolute paths so that <file>./doc.pl</file> runs.</p>
                    </release-item>

                    <release-item>
                        <p>Pick <code>pg_switch_wal()</code>/<code>pg_switch_xlog()</code> based on <postgres/> version.</p>
                    </release-item>

                    <release-item>
                        <p>Add configuration to the standby so it works as a primary when promoted.</p>
                    </release-item>

                    <release-item>
                        <p>Create common <id>if</id> expressions for testing <id>os-type</id>.</p>
                    </release-item>

                    <release-item>
                        <p>Add <id>zlib1g-dev</id> to <proper>Debian</proper> builds.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <p>New test containers with static test certificates.</p>
                    </release-item>

                    <release-item>
                        <p>Fix test binary name for <file>gprof</file>.</p>
                    </release-item>

                    <release-item>
                        <p>Allow arbitrary multiplier and flush character in <code>IoTestFilterMultiply</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Update URL for Docker install.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>testRepoPath()</code> to let C unit tests know where the code repository is located.</p>
                    </release-item>

                    <release-item>
                        <p>Merge <file>common/typeStringListTest</file> module into <file>common/typeStringTest</file>.</p>
                    </release-item>

                    <release-item>
                        <p>Merge <file>common/typeVariantListTest</file> module into <file>common/typeVariantTest</file>.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2018-11-16" version="2.07" title="Automatic Backup Checksum Delta">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="sebastien.lardiere"/>
                        </release-item-contributor-list>

                        <p>Fix issue with <br-option>archive-push-queue-max</br-option> not being honored on connection error.</p>
                    </release-item>

                    <release-item>
                        <p>Fix static WAL segment size used to determine if <br-option>archive-push-queue-max</br-option> has been exceeded.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="vthriller"/>
                        </release-item-contributor-list>

                        <p>Fix error after log file open failure when processing should continue.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Automatically enable backup checksum delta when anomalies (e.g. timeline switch) are detected.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="craig.a.james"/>
                        </release-item-contributor-list>

                        <p>Retry all S3 <id>5xx</id> errors rather than just <id>500</id> internal errors.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                            <release-item-contributor id="david.steele"/>
                        </release-item-contributor-list>

                        <p>Correct current history item in <code>InfoPg</code> to always be in position 0.</p>
                    </release-item>

                    <release-item>
                        <p>Make <code>ioReadLine()</code> read less aggressively.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>ioWriteFlush()</code> to flush pending output.</p>
                    </release-item>

                    <release-item>
                        <p>Add destructors to <code>IoRead</code> and <code>IoWrite</code> objects.</p>
                    </release-item>

                    <release-item>
                        <p>Add <id>base</id> variants to all integer to string conversion functions.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>lstInsert()</code> to <code>List</code> object.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>strCatChr()</code>, <code>strEmpty()</code>, and constant macros to <code>String</code> object.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>regExpPrefix()</code> to aid in static prefix searches.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Correct <code>cfgDefDataFind()</code> to use <code>UINTP</code> instead of <code>VOIDPP</code>.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Change <code>infoArchiveCheckPg()</code> to display the <postgres/> version as a string (e.g. 9.4) instead of the integer representation (e.g. 90400) when throwing an error.</p>
                    </release-item>

                    <release-item>
                        <p>Allow storage path and file mode to be 0.</p>
                    </release-item>

                    <release-item>
                        <p>Limit usable <code>Buffer</code> size without changing allocated size.</p>
                    </release-item>

                    <release-item>
                        <p>Construct <code>Wait</code> object in milliseconds instead of fractional seconds.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>THROW*_ON_SYS_ERROR*</code> macros to test and throw system errors.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>KernelError</code> to report miscellaneous kernel errors.</p>
                    </release-item>

                    <release-item>
                        <p>Use <code>THROW_ON_SYS_ERROR</code> macro to improve <code>fork</code> code coverage.</p>
                    </release-item>

                    <release-item>
                        <p><code>Storage</code> interface methods no longer declare the driver as const.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>memContextCallbackClear()</code> to prevent double <code>free()</code> calls.</p>
                    </release-item>

                    <release-item>
                        <p>Merge <file>crypto/random</file> module into <file>crypto/crypto</file>.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>cryptoError()</code> and update crypto code to use it.</p>
                    </release-item>

                    <release-item>
                        <p>Rename <code>CipherError</code> to <code>CryptoError</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Reword misleading message in stack trace when parameter buffer is full.</p>
                    </release-item>

                    <release-item>
                        <p>Add logging macros for <code>TimeMSec</code> type.</p>
                    </release-item>

                    <release-item>
                        <p>Modify value of <code>PERL_EMBED_ERROR</code> macro.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-development-list>
                    <release-item>
                        <p>Add new HTML tags and <code>strExtra</code> to <code>DocHtmlElement</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Remove error suppression for <backrest/> <file>make</file>.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <p>New test containers.  Add libxml2 library needed for S3 development.  Include new minor version upgrades for <postgres/>.  Remove <postgres/> 11 beta/rc repository.</p>
                    </release-item>

                    <release-item>
                        <p>Test speed improvements.  Mount <id>tmpfs</id> in <file>Vagrantfile</file> instead <file>test.pl</file>.  Preserve contents of C unit test build directory between <file>test.pl</file> executions.  Improve efficiency of code generation.</p>
                    </release-item>

                    <release-item>
                        <p>New, concise coverage report for C.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>TEST_LOG()</code> and <code>TEST_LOG_FMT()</code> macros.</p>
                    </release-item>

                    <release-item>
                        <p>Improve alignment of expected vs. actual error test results.</p>
                    </release-item>

                    <release-item>
                        <p>Add time since the beginning of the run to each test statement.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2018-10-15" version="2.06" title="Checksum Delta Backup and PostgreSQL 11 Support">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="dan.farrell"/>
                        </release-item-contributor-list>

                        <p>Fix missing URI encoding in S3 driver.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jesper.st.john"/>
                        </release-item-contributor-list>

                        <p>Fix incorrect error message for duplicate options in configuration files.</p>
                    </release-item>

                    <release-item>
                        <p>Fix incorrectly reported error return in <id>info</id> logging.  A return code of 1 from the <cmd>archive-get</cmd> was being logged as an error message at <id>info</id> level but otherwise worked correctly.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Add checksum delta for incremental backups which uses checksums rather than timestamps to determine if files have changed.</p>
                    </release-item>

                    <release-item>
                        <p><postgres/> 11 support, including configurable WAL segment size.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <p>Ignore all files in a linked tablespace directory except the subdirectory for the current version of <postgres/>.  Previously an error would be generated if other files were present and not owned by the <postgres/> user.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="douglas.j.hunley"/>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Improve <cmd>info</cmd> command to display the stanza cipher type.</p>
                    </release-item>

                    <release-item>
                        <p>Improve support for special characters in filenames.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Allow <br-option>delta</br-option> option to be specified in the <backrest/> configuration file.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Migrate local, unencrypted, non-S3 <cmd>archive-get</cmd> command to C.</p>
                    </release-item>

                    <release-item>
                        <p>Storage refactoring.  Posix file functions now differentiate between open and missing errors.  Don't use negations in objects below Storage.  Rename posix driver files/functions for consistency.  Full abstraction of storage driver interface.  Merge protocol storage helper into storage helper.  Add CIFS driver to storage helper for read-only repositories.</p>
                    </release-item>

                    <release-item>
                        <p>Update all interfaces to use variable parameter constructors.</p>
                    </release-item>

                    <release-item>
                        <p>Info objects now parse JSON and use specified storage.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>ioReadLine()</code>/<code>ioWriteLine()</code> to <code>IoRead</code>/<code>IoWrite</code> objects.</p>
                    </release-item>

                    <release-item>
                        <p>Add helper for repository storage.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>cryptoHmacOne()</code> for HMAC support.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>cfgDefOptionMulti()</code> to identify multi-value options.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="david.steele"/>
                            <release-item-contributor id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>Add <code>bufNewZ()</code> and <code>bufHex()</code> to <code>Buffer</code> object.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Allow <code>hashSize()</code> to run on remote storage.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Restore <code>bIgnoreMissing</code> flag in <code>backupFile()</code> lost in storage refactor.</p>
                    </release-item>

                    <release-item>
                        <p>Migrate <code>walIsPartial()</code>, <code>walIsSegment()</code>, and <code>walSegmentFind()</code> from Perl to C.</p>
                    </release-item>

                    <release-item>
                        <p>Migrate control functions to detect stop files to C.</p>
                    </release-item>

                    <release-item>
                        <p>Make archive-get info messages consistent between C and Perl implementations.</p>
                    </release-item>

                    <release-item>
                        <p>Change locking around async process forking to be more test friendly.</p>
                    </release-item>

                    <release-item>
                        <p>Simplify debug logging by allowing log functions to return <code>String</code> objects.</p>
                    </release-item>

                    <release-item>
                        <p>Improve documentation in <code>filter.h</code> and <code>filter.internal.h</code>.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                            <release-item-ideator id="magnus.hagander"/>
                        </release-item-contributor-list>

                        <p>Use <id>command</id> in <file>authorized_hosts</file> to improve SSH security.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephane.schildknecht"/>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>List allowable values for the <br-option>buffer-size</br-option> option in the configuration reference.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Update introduction to be pithy.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <p>Install <proper>nodejs</proper> from <id>deb.nodesource.com</id>.</p>
                    </release-item>

                    <release-item>
                        <p>Disable flapping <id>archive/get</id> unit on CentOS 6.</p>
                    </release-item>

                    <release-item>
                        <p>Move test expect log out of the regular test directory.</p>
                    </release-item>

                    <release-item>
                        <p>Fix buffer underrun in configuration test harness.</p>
                    </release-item>

                    <release-item>
                        <p>Fix missing test caused by a misplaced YAML tag.</p>
                    </release-item>

                    <release-item>
                        <p>Make Valgrind return an error even when a non-fatal issue is detected.  Update some minor issues discovered in the tests as a result.</p>
                    </release-item>

                    <release-item>
                        <p>Add <id>-ftree-coalesce-vars</id> option to unit test compilation.</p>
                    </release-item>

                    <release-item>
                        <p>Clear test directory between test runs.</p>
                    </release-item>

                    <release-item>
                        <p>Allow C or Perl coverage to run on more than one VM.</p>
                    </release-item>

                    <release-item>
                        <p>Don't perform valgrind when requested.</p>
                    </release-item>

                    <release-item>
                        <p>Remove compiler warnings that are not valid for u16.</p>
                    </release-item>

                    <release-item>
                        <p>Merge all posix storage tests into a single unit.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>Add <file>.gitignore</file> to C <path>src</path> directory.</p>
                    </release-item>

                    <release-item>
                        <p>Fix typo in unit test error messages, EXECTED => EXPECTED.</p>
                    </release-item>

                    <release-item>
                        <p>Make comment blocks consistent across all tests.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2018-08-31" version="2.05" title="Environment Variable Options and Exclude Temporary/Unlogged Relations">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Fix issue where <i>relative</i> links in <path>$PGDATA</path> could be stored in the backup with the wrong path.  This issue did not affect absolute links and relative tablespace links were caught by other checks.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jason.odonnell"/>
                        </release-item-contributor-list>

                        <p>Remove incompletely implemented <br-option>online</br-option> option from the <cmd>check</cmd> command.  Offline operation runs counter to the purpose of this command, which is to check if archiving and backups are working correctly.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="douglas.j.hunley"/>
                        </release-item-contributor-list>

                        <p>Fix issue where errors raised in C were not logged when called from Perl.  <backrest/> properly terminated with the correct error code but lacked an error message to aid in debugging.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="yogesh.sharma"/>
                        </release-item-contributor-list>

                        <p>Fix issue when a boolean option (e.g. <br-option>delta</br-option>) was specified more than once.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <p>Allow any option to be set in an environment variable.  This includes options that previously could only be specified on the command line, e.g. <br-option>stanza</br-option>, and secret options that could not be specified on the command-line, e.g. <br-option>repo1-s3-key-secret</br-option>.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Exclude temporary and unlogged relation (table/index) files from backup.  Implemented using the same logic as the patches adding this feature to <postgres/>, <link url="https://git.postgresql.org/pg/commitdiff/8694cc96b52a967a49725f32be7aa77fd3b6ac25">8694cc96</link> and <link url="https://git.postgresql.org/pg/commitdiff/920a5e500a119b03356fb1fb64a677eb1aa5fc6f">920a5e50</link>.  Temporary relation exclusion is enabled in <postgres/> &amp;ge; <id>9.0</id>.  Unlogged relation exclusion is enabled in <postgres/> &amp;ge; <id>9.1</id>, where the feature was introduced.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-reviewer id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Allow arbitrary directories and/or files to be excluded from a backup.  Misuse of this feature can lead to inconsistent backups so read the <br-option>--exclude</br-option> documentation carefully before using.</p>
                    </release-item>

                    <release-item>
                        <p>Add <br-option>log-subprocess</br-option> option to allow file logging for <id>local</id> and <id>remote</id> subprocesses.</p>
                    </release-item>

                    <release-item>
                        <p><postgres/> 11 Beta 3 support.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Allow zero-size files in backup manifest to reference a prior manifest regardless of timestamp delta.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>Improve asynchronous <cmd>archive-get</cmd>/<cmd>archive-push</cmd> performance by directly checking status files.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="sarah.conway"/>
                        </release-item-contributor-list>

                        <p>Improve error message when a command is missing the <br-option>stanza</br-option> option.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Validate configuration options in a single pass.  By pre-calculating and storing the option dependencies in <file>parse.auto.c</file> validation can be completed in a single pass, which is both simpler and faster.</p>
                    </release-item>

                    <release-item>
                        <p>Add gzip compression/decompression filters for C.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                            <release-item-reviewer id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>Improve performance of string to int conversion.  Use <code>strtoll()</code> instead of <code>sprintf()</code> for conversion.  Also use available integer min/max constants rather than hard-coded values.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                            <release-item-reviewer id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>Add <code>uint64</code> variant type and supporting conversion functions.</p>
                    </release-item>

                    <release-item>
                        <p>Add basic C JSON parser.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Migrate minimum set of code for reading <file>archive.info</file> files from Perl to C.</p>
                    </release-item>

                    <release-item>
                        <p>Allow <code>Buffer</code> object <quote>used size</quote> to be different than <quote>allocated size</quote>.  Add functions to manage used size and remaining size and update automatically when possible.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-reviewer id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Abstract IO layer out of the storage layer.  This allows the routines to be used for IO objects that do not have a storage representation.  Implement buffer read and write IO objects.  Implement filters and update <code>cryptoHash</code> to use the new interface.  Implement size and buffer filters.</p>
                    </release-item>

                    <release-item>
                        <p><code>storageFileRead()</code> accepts a buffer for output rather than creating one.  This is more efficient overall and allows the caller to specify how many bytes will be read on each call.  Reads are appended if the buffer already contains data but the buffer size will never increase.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Add <code>iniSectionList()</code> to <code>Ini</code> object and remove dead code.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="david.steele"/>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Manifest improvements.  Require <postgres/> catalog version when instantiating a <code>Manifest</code> object (and not loading it from disk).  Prevent manifest from being built more than once.  Limit manifest build recursion (i.e. links followed) to sixteen levels to detect link loops.</p>
                    </release-item>

                    <release-item>
                        <p>Do nothing in <code>memContextMove()</code> when the context is already in the specified parent.</p>
                    </release-item>

                    <release-item>
                        <p>Allow command/option constants to autonumber in both C and Perl to reduce churn when a new command/option is added.</p>
                    </release-item>

                    <release-item>
                        <p>Show exact log level required for stack trace param output instead of just <quote>debug</quote>.</p>
                    </release-item>

                    <release-item>
                        <p>Update <code>Archive::Info->archiveIdList()</code> to return a valid error code instead of unknown.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>cvtBoolToConstZ()</code> to simplify conversion of boolean to string.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>cvtZToUInt()</code> to convert string to unsigned int.</p>
                    </release-item>

                    <release-item>
                        <p>Enable <id>-Wstrict-prototypes</id>, <id>-Wpointer-arith</id>, <id>-Wduplicated-branches</id>, <id>-Wvla</id>, and <id>-Wduplicated-cond</id> and update code to conform where necessary.</p>
                    </release-item>

                    <release-item>
                        <p>Rename error-handling variables in <code>Main.pm</code> to conform to standard.</p>
                    </release-item>

                    <release-item>
                        <p>Remove redundant lines from embedded Perl by combining blank lines.</p>
                    </release-item>

                    <release-item>
                        <p>Define cipher magic size with <code>sizeof()</code> rather than using a constant.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>cvtCharToZ()</code> and macro for debugging <code>char</code> params.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>strReplaceChr()</code> to <code>String</code> object.</p>
                    </release-item>

                    <release-item>
                        <p>Correct <id>OptionInvalidError</id> to <id>OptionInvalidValueError</id> in boolean option parsing.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="camilo.aguilar"/>
                        </release-item-contributor-list>

                        <p>Fix invalid log level in <br-option>log-path</br-option> option reference.</p>
                    </release-item>
                </release-bug-list>

                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="christophe.pettus"/>
                        </release-item-contributor-list>

                        <p>Stop trying to arrange contributors in <file>release.xml</file> by last/first name.  Contributor names have always been presented in the release notes exactly as given, but we tried to assign internal IDs based on last/first name which can be hard to determine and ultimately doesn't make sense.  Inspired by Christophe's <proper>PostgresOpen 2017</proper> talk, <quote>Human Beings Do Not Have a Primary Key</quote>.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Allow containers to be defined in a document.  The defined containers are built before the document build begins which allows them to be reused.</p>
                    </release-item>

                    <release-item>
                        <p>Move most host setup to containers defined in the documentation.  This includes <postgres/> installation which had previously been included in the documentation.  This way produces faster builds and there is no need for us to document <postgres/> installation.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-improvement-list>
                    <release-item>
                        <p>Error if LibC build is performed outside the test environment.  LibC is no longer required for production builds.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Use pre-built images from Docker Hub when the container definition has not changed.  Downloading an image is quite a bit faster than building a new image from scratch and saves minutes per test run in CI.</p>
                    </release-item>

                    <release-item>
                        <p>Refactor the <code>common/log</code> tests to not depend on <code>common/harnessLog</code>.  <code>common/harnessLog</code> was not ideally suited for general testing and made all the tests quite awkward.  Instead, move all code used to test the <code>common/log</code> module into the <code>logTest</code> module and repurpose <code>common/harnessLog</code> to do log expect testing for all other tests in a cleaner way. Add a few exceptions for config testing since the log levels are reset by default in <code>config/parse</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Add <setting>--log-level-test</setting> option.  This allows setting the test log level independently from the general test harness setting, but current only works for the C tests.  It is useful for seeing log output from functions on the console while a test is running.</p>
                    </release-item>

                    <release-item>
                        <p>Improve error reporting for <code>TEST_ASSIGN()</code> and <code>TEST_RESULT_VOID()</code> macros.</p>
                    </release-item>

                    <release-item>
                        <p>Update code count for new file types and exclusions.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2018-07-05" version="2.04" title="Critical Bug Fix for Backup Resume">
            <release-core-list>
                <p><b>IMPORTANT NOTE</b>: This release fixes a critical bug in the backup resume feature. All resumed backups prior to this release should be considered inconsistent. A backup will be resumed after a prior backup fails, unless <br-option>resume=n</br-option> has been specified. A resumed backup can be identified by checking the backup log for the message <quote>aborted backup of same type exists, will be cleaned to remove invalid files and resumed</quote>. If the message exists, do not use this backup or any backup in the same set for a restore and check the restore logs to see if a resumed backup was restored. If so, there may be inconsistent data in the cluster.</p>

                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="david.youatt"/>
                            <release-item-ideator id="yogesh.sharma"/>
                            <release-item-ideator id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>Fix critical bug in resume that resulted in inconsistent backups.  A regression in <id>v0.82</id> removed the timestamp comparison when deciding which files from the aborted backup to keep on resume. See note above for more details.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="nj.baliyan"/>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Fix error in selective restore when only one user database exists in the cluster.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="andrew.schwartz"/>
                        </release-item-contributor-list>

                        <p>Fix non-compliant ISO-8601 timestamp format in S3 authorization headers.  AWS and some gateways were tolerant of space rather than zero-padded hours while others were not.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <p><postgres/> 11 Beta 2 support.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="adam.k.sumner"/>
                        </release-item-contributor-list>

                        <p>Improve the HTTP client to set <id>content-length</id> to 0 when not specified by the server.  S3 (and gateways) always set <id>content-length</id> or <id>transfer-encoding</id> but <id>HTTP 1.1</id> does not require it and proxies (e.g. <proper>HAProxy</proper>) may not include either.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>Set <code>search_path = 'pg_catalog'</code> on <postgres/> connections.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Move cryptographic hash functions to C using <proper>OpenSSL</proper>.</p>
                    </release-item>

                    <release-item>
                        <p>Split log levels into separate header file.  Many modules that use <code>debug.h</code> do not need to do logging so this reduces dependencies for those modules.</p>
                    </release-item>

                    <release-item>
                        <p>Auto-generate Makefile with dependencies.</p>
                    </release-item>

                    <release-item>
                        <p>Rename <code>cipher</code> module to the more general <code>crypto</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Update Debian package to add debug symbols to <backrest/> executable.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="devrim.gunduz"/>
                        </release-item-contributor-list>

                        <p>Convert the not very portable <code>uint</code> type to <code>unsigned int</code>.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-improvement-list>
                    <release-item>
                        <p>Create a new section to describe building <backrest/> and build on a separate host.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="douglas.j.hunley"/>
                            <release-item-ideator id="jason.odonnell"/>
                        </release-item-contributor-list>

                        <p>Add sample S3 policy to restrict bucket privileges.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Fix default location of <file>pgbackrest.conf</file> in option reference.</p>
                    </release-item>

                    <release-item>
                        <p>Preliminary documentation for <postgres/> 11 unprivileged user backup.</p>
                    </release-item>

                    <release-item>
                        <p>Remove call to <file>lscpu</file> which can vary widely by build host.</p>
                    </release-item>

                    <release-item>
                        <p>Build containers from scratch for more accurate testing.  Use a prebuilt s3 server container.</p>
                    </release-item>

                    <release-item>
                        <p>Document generator improvements.  Allow parameters to be passed when a container is created.  Allow <file>/etc/hosts</file> update to be skipped (for containers without bash).  Allow environment load to be skipped.  Allow bash wrapping to be skipped.  Allow forcing a command to run as a user without sudo.  Allow an entire execute list to be hidden.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <p>Add zero-length file to <id>mock</id>/<id>all</id> test.</p>
                    </release-item>

                    <release-item>
                        <p>Update primary test environment (Vagrant and Docker) to Ubuntu 18.04.</p>
                    </release-item>

                    <release-item>
                        <p>Improve efficiency of C library builds now that they are used only for testing.</p>
                    </release-item>

                    <release-item>
                        <p>Remove RHEL and Debian package patches since they have been committed upstream.</p>
                    </release-item>

                    <release-item>
                        <p>Update parameters for <file>VBoxService</file> start.</p>
                    </release-item>

                    <release-item>
                        <p>Make <file>ls</file> ordering deterministic in <id>mock</id>/<id>all</id> test.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2018-05-22" version="2.03" title="Single Executable to Deploy">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="laetitia"/>
                        </release-item-contributor-list>

                        <p>Fix potential buffer overrun in error message handling.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="uspen"/>
                        </release-item-contributor-list>

                        <p>Fix archive write lock being taken for the synchronous <cmd>archive-get</cmd> command.</p>
                    </release-item>
                </release-bug-list>

                <release-improvement-list>
                    <release-item>
                        <p>Embed exported C functions and Perl modules directly into the <backrest/> executable.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="nick.floersch"/>
                        </release-item-contributor-list>

                        <p>Use <code>time_t</code> instead of <code>__time_t</code> for better portability.</p>
                    </release-item>

                    <release-item>
                        <p>Print total runtime in milliseconds at command end.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Add stack trace macros to all functions.  Low-level functions only include stack trace in test builds while higher-level functions ship with stack trace built-in.  Stack traces include all parameters passed to the function but production builds only create the parameter list when the log level is set high enough, i.e. <id>debug</id> or <id>trace</id> depending on the function.</p>
                    </release-item>

                    <release-item>
                        <p>Build <path>libc</path> using links rather than referencing the C files in <path>src</path> directly.  The C library builds with different options which should not be reused for the C binary or vice versa.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <p>Test harness improvements.  Allow more than one test to provide coverage for the same module.  Add option to disable valgrind.  Add option to disabled coverage.  Add option to disable debug build.  Add option to disable compiler optimization.  Add <id>--dev-test</id> mode.</p>
                    </release-item>

                    <release-item>
                        <p>Update SSL error message test on CentOS 7.</p>
                    </release-item>

                    <release-item>
                        <p>Set <br-option>log-timestamp=n</br-option> for integration tests.  This means less filtering of logs needs to be done and new timestamps can be added without adding new filters.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2018-05-06" version="2.02" title="Parallel Asynchronous Archive Get and Configuration Includes">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="craig.a.james"/>
                        </release-item-contributor-list>

                        <p>Fix directory syncs running recursively when only the specified directory should be synced.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="yummyliu"/>
                            <release-item-ideator id="vitaliy.kukharik"/>
                        </release-item-contributor-list>

                        <p>Fix <br-option>archive-copy</br-option> throwing <quote>path not found</quote> error for incr/diff backups.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="vitaliy.kukharik"/>
                        </release-item-contributor-list>

                        <p>Fix failure in manifest build when two or more files in <id>PGDATA</id> are linked to the same directory.</p>
                    </release-item>

                    <release-item>
                        <p>Fix delta restore failing when a linked file is missing.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="clinton.adams"/>
                        </release-item-contributor-list>

                        <p>Fix rendering of key/value and list options in help.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <p>Add asynchronous, parallel <cmd>archive-get</cmd>.  This feature maintains a queue of WAL segments to help reduce latency when <postgres/> requests a WAL segment with <pg-option>restore_command</pg-option>.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Add support for additional <backrest/> configuration files in the directory specified by the <br-option>--config-include-path</br-option> option. Add <br-option>--config-path</br-option> option for overriding the default base path of the <br-option>--config</br-option> and <br-option>--config-include-path</br-option> option.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="yogesh.sharma"/>
                        </release-item-contributor-list>

                        <p>Add <br-option>repo-s3-token</br-option> option to allow temporary credentials tokens to be configured.  <backrest/> currently has no way to request new credentials so the entire command (e.g. <cmd>backup</cmd>, <cmd>restore</cmd>) must complete before the credentials expire.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Update the <br-option>archive-push-queue-max</br-option>, <br-option>manifest-save-threshold</br-option>, and <br-option>buffer-size</br-option> options to accept values in <id>KB</id>, <id>MB</id>, <id>GB</id>, <id>TB</id>, or <id>PB</id> where the multiplier is a power of <id>1024</id>.</p>
                    </release-item>

                    <release-item>
                        <p>Make backup/restore path sync more efficient.  Scanning the entire directory can be very expensive if there are a lot of small tables.  The backup manifest contains the path list so use it to perform syncs instead of scanning the backup/restore path.</p>
                    </release-item>

                    <release-item>
                        <p>Show command parameters as well as command options in initial info log message.</p>
                    </release-item>

                    <release-item>
                        <p>Rename <br-option>archive-queue-max</br-option> option to <br-option>archive-push-queue-max</br-option> to avoid confusion with the new <br-option>archive-get-queue-max</br-option> option.  The old option name will continue to be accepted.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Make <path>backup.history</path> sync more efficient.  Only the <path>backup.history/[year]</path> directory was being synced, so check if the <path>backup.history</path> is newly created and sync it as well.</p>
                    </release-item>

                    <release-item>
                        <p>Move async forking and more error handling to C. The Perl process was exiting directly when called but that interfered with proper locking for the forked async process.  Now Perl returns results to the C process which handles all errors, including signals.</p>
                    </release-item>

                    <release-item>
                        <p>Improved lock implementation written in C.  Now only two types of locks can be taken: <id>archive</id> and <id>backup</id>.  Most commands use one or the other but the <cmd>stanza-*</cmd> commands acquire both locks.  This provides better protection than the old command-based locking scheme.</p>
                    </release-item>

                    <release-item>
                        <p>Storage object improvements.  Convert all functions to variadic functions.  Enforce read-only storage. Add <code>storageLocalWrite()</code> helper function.  Add <code>storageCopy()</code>, <code>storageExists()</code>, <code>storageMove()</code>, <code>storageNewRead()</code>/<code>storageNewWrite()</code>, <code>storagePathCreate()</code>, <code>storagePathRemove()</code>, <code>storagePathSync()</code>, and <code>storageRemove()</code>.  Add <code>StorageFileRead</code> and <code>StorageFileWrite</code> objects.  Abstract Posix driver code into a separate module. Call <code>storagePathRemove()</code> from the Perl Posix driver.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                            <release-item-contributor id="david.steele"/>
                        </release-item-contributor-list>

                        <p>Improve <code>String</code> and <code>StringList</code> objects.  Add <code>strUpper()</code>, <code>strLower()</code>, <code>strLstExists()</code>, <code>strLstExistsZ()</code>, <code>strChr()</code>, <code>strSub()</code>, <code>strSubN()</code>, and <code>strTrunc()</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Improve <code>Buffer</code> object.  Add <code>bufNewC()</code>, <code>bufEq()</code> and <code>bufCat()</code>.  Only reallocate buffer when the size has changed.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>pgControlInfo()</code> to read <file>pg_control</file> and determine the <postgres/> version.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>walSegmentNext()</code> and <code>walSegmentRange()</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Error handling improvments.  Add <code>THROWP_</code>* macro variants for error handling.  These macros allow an <code>ErrorType</code> pointer to be passed and are required for functions that may return different errors based on a parameter.  Add <code>_FMT</code> variants for all <code>THROW</code> macros so format types are checked by the compiler.</p>
                    </release-item>

                    <release-item>
                        <p>Split <code>cfgLoad()</code> into multiple functions to make testing easier.  Mainly this helps with unit tests that need to do log expect testing.</p>
                    </release-item>

                    <release-item>
                        <p>Allow <code>MemContext</code> objects to be copied to a new parent.  This makes it easier to create objects and then copy them to another context when they are complete without having to worry about freeing them on error.  Update <code>List</code>, <code>StringList</code>, and <code>Buffer</code> to allow moves.  Update <code>Ini</code> and <code>Storage</code> to take advantage of moves.</p>
                    </release-item>

                    <release-item>
                        <p>Full branch coverage in C code.</p>
                    </release-item>

                    <release-item>
                        <p>Refactor <id>usec</id> to <id>msec</id> in <code>common/time.c</code>.  The implementation provides <id>usec</id> resolution but this is not needed in practice and it makes the interface more complicated due to the extra zeros.</p>
                    </release-item>

                    <release-item>
                        <p>Replace <code>THROW_ON_SYS_ERROR()</code> with <code>THROW_SYS_ERROR()</code>.  The former macro was hiding missing branch coverage for critical error handling.</p>
                    </release-item>

                    <release-item>
                        <p>Start work on C handle io object and use it to output help.</p>
                    </release-item>

                    <release-item>
                        <p>Don't copy <id>CFGDEF_NAME_ALT</id> or <id>CFGDEF_INHERIT</id> when processing config option inheritance.</p>
                    </release-item>

                    <release-item>
                        <p>Split debug and assert code into separate headers.  Assert can be used earlier because it only depends on the error-handler and not logging.  Add <code>ASSERT()</code> macro which is preserved in production builds.</p>
                    </release-item>

                    <release-item>
                        <p>Cleanup C types.  Remove <code>typec.h</code>. Order all typdefs above local includes.</p>
                    </release-item>

                    <release-item>
                        <p>Fix header exclusion defines that do not match the general pattern.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="viorel.tabara"/>
                        </release-item-contributor-list>

                        <p>Update docs with 32-bit support and caveats. 32-bit support was added in <proper>v1.26</proper>.</p>
                    </release-item>
                </release-bug-list>

                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                            <release-item-ideator id="brian.faherty"/>
                        </release-item-contributor-list>

                        <p>Add monitoring examples using <postgres/> and <proper>jq</proper>.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="christophe.courtois"/>
                        </release-item-contributor-list>

                        <p>Add example of command section usage to archiving configuration.</p>
                    </release-item>

                    <release-item>
                        <p>Remove documentation describing <code>info --output=json</code> as experimental.</p>
                    </release-item>

                    <release-item>
                        <p>Update out-of-date description for the <br-option>spool-path</br-option> option.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Add logic to find the real oid of the <id>test1</id> database during restore testing.</p>
                    </release-item>

                    <release-item>
                        <p>Document build improvements.  Perform <code>apt-get update</code> to ensure packages are up to date before installing.  Add <id>-p</id> to the repository <file>mkdir</file> so it won't fail if the directory already exists, handy for testing packages.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-feature-list>
                    <release-item>
                        <p>Use <proper>lcov</proper> for C unit test coverage reporting.  Switch from <proper>Devel::Cover</proper> because it would not report on branch coverage for reports converted from <proper>gcov</proper>.  Incomplete branch coverage for a module now generates an error.  Coverage of unit tests is not displayed in the report unless they are incomplete for either statement or branch coverage.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <p>Move test definitions to <file>test/define.yaml</file>.  The location is better because it is no longer buried in the Perl test libs.  Also, the data can be easily accessed from C.</p>
                    </release-item>

                    <release-item>
                        <p>Move help/version integration tests to <id>mock/all</id>.  Help and version are covered by unit tests, so we really just to need to make sure there is output when called from the command line.</p>
                    </release-item>

                    <release-item>
                        <p>Move <id>archive-stop</id> and <id>expire</id> tests to the <id>mock</id> module.  These are mock integration tests so they should be grouped with the other mock integration tests.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>harnessCfgLoad()</code> test function, which allows a new config to be loaded for unit testing without resetting log functions, opening a log file, or taking locks.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>HARNESS_FORK</code> macros for tests that require fork().  A standard pattern for tests makes fork() easier to use and should help prevent some common mistakes.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>TEST_ERROR_FMT</code> macro to simplify testing of formatted error messages.</p>
                    </release-item>

                    <release-item>
                        <p>Generate code counts for all source files.  The source files are also classified by type and purpose.</p>
                    </release-item>

                    <release-item>
                        <p>Include VM type in <id>gcov</id> path to avoid conflicts between VMs with different architectures.</p>
                    </release-item>

                    <release-item>
                        <p>Improve logic for smart builds to include version changes.  Skip version checks when testing in <setting>--dev</setting> mode.</p>
                    </release-item>

                    <release-item>
                        <p>Use <proper>pip 9.03</proper> in test VMs.  <proper>pip 10</proper> drops support for <proper>Python 2.6</proper> which is still used by the older test VMs.</p>
                    </release-item>

                    <release-item>
                        <p>Allow <code>-DDEBUG_UNIT</code> to be suppressed to test how debug macros behave.</p>
                    </release-item>

                    <release-item>
                        <p>Rename Perl tests so they don't conflict with their C counterparts.</p>
                    </release-item>

                    <release-item>
                        <p>Divide tests into three types (<id>unit</id>, <id>integration</id>, <id>performance</id>).  Many options that were set per test can instead be inferred from the types, i.e. <id>container</id>, <id>c</id>, <id>expect</id>, and <id>individual</id>.</p>
                    </release-item>

                    <release-item>
                        <p>Try tweaking time sync settings to prevent clock drift rather than restarting <id>VBoxService</id> on every test run.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2018-03-19" version="2.01" title="Minor Bug Fixes and Improvements">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="brad.nicholson"/>
                        </release-item-contributor-list>

                        <p>Fix <br-option>--target-action</br-option> and <br-option>--recovery-option</br-option> options being reported as invalid when restoring with <br-option>--type=immediate</br-option>.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="brad.nicholson"/>
                        </release-item-contributor-list>

                        <p>Immediately error when a secure option (e.g. <br-option>repo1-s3-key</br-option>) is passed on the command line.  Since <backrest/> would not pass secure options on to sub-processes an obscure error was thrown.  The new error is much clearer and provides hints about how to fix the problem.  Update command documentation to omit secure options that cannot be specified on the command-line.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="ibrahim.edib.kokdemir"/>
                        </release-item-contributor-list>

                        <p>Fix issue passing <br-option>--no-config</br-option> to embedded Perl.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="clinton.adams"/>
                        </release-item-contributor-list>

                        <p>Fix issue where specifying <br-setting>log-level-stderr</br-setting> > <id>warn</id> would cause a <cmd>local</cmd>/<cmd>remote</cmd> process to error on exit due to output found on stderr when none was expected.  The max value for a <cmd>local</cmd>/<cmd>remote</cmd> process is now <id>error</id> since there is no reason for these processes to emit warnings.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="thomas.flatley"/>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Fix manifest test in the <cmd>check</cmd> command when tablespaces are present.</p>
                    </release-item>
                </release-bug-list>

                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Error when multiple arguments are set in the config file for an option that does not accept multiple arguments.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="adrian.vondendriesch"/>
                        </release-item-contributor-list>

                        <p>Remove extraneous sudo commands from <file>src/Makefile</file>.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Improve Perl configuration. Set config before <code>Main::main()</code> call to avoid secrets being exposed in a stack trace.  Move logic for setting defaults to C.</p>
                    </release-item>

                    <release-item>
                        <p>Improve logging.  Move command begin to C except when it must be called after another command in Perl (e.g. <cmd>expire</cmd> after <cmd>backup</cmd>).  Command begin logs correctly for complex data types like hash and list.  Specify which commands will log to file immediately and set the default log level for log messages that are common to all commands.  File logging is initiated from C.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Port most of <code>Config::Config::configLoad()</code> from Perl to C.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="douglas.j.hunley"/>
                        </release-item-contributor-list>

                        <p>Fix incorrect enum types in <file>config.c</file> that throw warnings under clang.</p>
                    </release-item>

                    <release-item>
                        <p>Enable <id>-Wswitch-enum</id>, <id>-Wconversion</id>, <id>-Wformat=2</id>, <id>-Wformat-nonliteral</id>, and <id>-Wformat-signedness</id> and silence new warnings.</p>
                    </release-item>

                    <release-item>
                        <p>Improve code documentation in <code>config</code> module.</p>
                    </release-item>

                    <release-item>
                        <p>Improve debugging.  Add <code>ASSERT_DEBUG()</code> macro for debugging and replace all current <code>assert()</code> calls except in tests that can't use the debug code.  Replace remaining NDEBUG blocks with the more granular DEBUG_UNIT.  Remove some debug <code>memset()</code> calls in <code>MemContext</code> since valgrind is more useful for these checks.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Add <code>cfgOptionTest()</code> and update <code>cfgOption()</code> calls that are better implemented as <code>cfgOptionTest()</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Build with <id>-DNDEBUG</id> by default but disable for testing.</p>
                    </release-item>

                    <release-item>
                        <p>Check <code>int</code> size in <code>common/type.h</code>.  This ensures that integers are at least 32-bits without having to run the test suite.</p>
                    </release-item>

                    <release-item>
                        <p>Improve conversion of C exceptions to <code>Exception</code> objects.  Colons in the message would prevent all of the message from being loaded into the <code>Exception</code> object.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>Show index in examples for indexed options, i.e. <id>repo-*</id>, <id>pg-*</id>.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>Simplify table of contents on command page by only listing commands.</p>
                    </release-item>

                    <release-item>
                        <p>Remove references to the C library being optional.</p>
                    </release-item>
                </release-improvement-list>
            </release-doc-list>

            <release-test-list>
                <release-feature-list>
                    <release-item>
                        <p>Add CentOS/RHEL package builds.</p>
                    </release-item>

                    <release-item>
                        <p>Use clang for static code analysis.  Nothing found initially except for some functions that should have been marked <code>__noreturn__</code>.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <p>Buld performance improvements.  Improve bin and libc build performance.  Improve code generation performance.</p>
                    </release-item>

                    <release-item>
                        <p>Config test code writes secure options to a file instead of passing on the command-line.</p>
                    </release-item>

                    <release-item>
                        <p>Disable console display of coverage for C files since <code>Devel::Cover</code> does not handle it well.</p>
                    </release-item>

                    <release-item>
                        <p>Add new test for <code>Common::Io::Process</code> to show that output on stderr will raise an exception on <code>close()</code> even if the exit code is 0.</p>
                    </release-item>

                    <release-item>
                        <p>Update <file>pip</file> before installing <file>awscli</file>.</p>
                    </release-item>

                    <release-item>
                        <p>Remove <setting>--smart</setting> from <setting>--expect</setting> tests.  This ensures that new binaries are built before running the tests.</p>
                    </release-item>

                    <release-item>
                        <p>Remove Debian package patch now that it has been merged upstream.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2018-02-23" version="2.00" title="Performance Improvements for Archive Push">
            <release-core-list>
                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-reviewer id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>The <cmd>archive-push</cmd> command is now partially coded in C which allows the <postgres/> <file>archive_command</file> to run significantly faster when processing status messages from the asynchronous archive process.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Improve <cmd>check</cmd> command to verify that the backup manifest can be built.</p>
                    </release-item>

                    <release-item>
                        <p>Improve performance of HTTPS client.  Buffering now takes the <code>pending</code> bytes on the socket into account (when present) rather than relying entirely on <code>select()</code>.  In some instances the final bytes would not be flushed until the connection was closed.</p>
                    </release-item>

                    <release-item>
                        <p>Improve S3 delete performance.  The constant <id>S3_BATCH_MAX</id> had been replaced with a hard-coded value of 2, probably during testing.</p>
                    </release-item>

                    <release-item>
                        <p>Allow any non-command-line option to be reset to default on the command-line.  This allows options in <file>pgbackrest.conf</file> to be reset to default which reduces the need to write new configuration files for specific needs.</p>
                    </release-item>

                    <release-item>
                        <p>The C library is now required. This eliminates conditional loading and eases development of new library features.</p>
                    </release-item>

                    <release-item>
                        <p>The <file>{[project-exe]}</file> executable is now a C binary instead of Perl. This allows certain time-critical commands (like async <cmd>archive-push</cmd>) to run more quickly.</p>
                    </release-item>

                    <release-item>
                        <p>Rename <id>db-*</id> options to <id>pg-*</id> and <id>backup-*</id> options to <id>repo-*</id> to improve consistency.  <id>repo-*</id> options are now indexed although currently only one is allowed.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Implement <cmd>help</cmd> command in C.</p>
                    </release-item>

                    <release-item>
                        <p>Implement <cmd>version</cmd> command in C.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-reviewer id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Config parsing implemented in C and passed to Perl as JSON.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>Buffer</code>, <code>Ini</code>, <code>KeyValue</code>, <code>List</code>, <code>RegExp</code>, <code>Storage</code>, <code>String</code>, <code>StringList</code>, <code>Variant</code>, <code>VariantList</code>, and <code>Wait</code> objects.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>command</code>, <code>exit</code>, <code>log</code>, and <code>time</code> modules.</p>
                    </release-item>

                    <release-item>
                        <p>Remove deprecated <br-option>archive-max-mb</br-option> option.</p>
                    </release-item>

                    <release-item>
                        <p>Improve <code>MemContext</code> module.  Add temporary context blocks and refactor allocation arrays to include allocation size.</p>
                    </release-item>

                    <release-item>
                        <p>Improve <code>error</code> module.  Add functions to convert error codes to C errors and handle system errors.</p>
                    </release-item>

                    <release-item>
                        <p>Create a master list of errors in <file>build/error.yaml</file>.  The C and Perl errors lists are created automatically by <code>Build.pm</code> so they stay up to date.</p>
                    </release-item>

                    <release-item>
                        <p>Move lock release later in exitSafe() to reduce the chance of a new process starting and acquiring a lock before the old process has exited.</p>
                    </release-item>

                    <release-item>
                        <p>Add 30 second wait loop to lockAcquire() when fail on no lock enabled.  This should help prevent processes that are shutting down from interfering with processes that are starting up.</p>
                    </release-item>

                    <release-item>
                        <p>Replace <code>cfgCommandTotal()</code>/<code>cfgOptionTotal()</code> functions with constants.  The constants are applicable in more cases and allow the compiler to optimize certain loops more efficiently.</p>
                    </release-item>

                    <release-item>
                        <p>Cleanup usage of internal options.  Apply internal to options that need to be read to determine locality but should not appear in the help.</p>
                    </release-item>

                    <release-item>
                        <p>Refactor code to make valgrind happy.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Fix non-compliant formatting for function declarations.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-feature-list>
                    <release-item>
                        <p>All clusters in the documentation are initialized with checksums.</p>
                    </release-item>
                </release-feature-list>

                 <release-improvement-list>
                     <release-item>
                         <p>List deprecated option names in documentation and command-line help.</p>
                     </release-item>

                     <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="david.youatt"/>
                        </release-item-contributor-list>

                         <p>Clarify that S3 buckets must be created by the user.</p>
                     </release-item>
                 </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Add coding standards document.</p>
                    </release-item>

                    <release-item>
                        <p>Improve section source feature to not require a title or content.  The title will be pulled from the source document.</p>
                    </release-item>

                    <release-item>
                        <p>Allow code blocks to have a type.  Currently this is only rendered in Markdown.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Add table render for Markdown format.</p>
                    </release-item>

                    <release-item>
                        <p>PDF rendering improvements.  Check both <path>doc-path</path> and <path>bin-path</path> for logo.  Allow PDF to be output to a location other than the <path>output</path> directory. Use PDF-specific version variable for more flexible formatting.  Allow sections to be excluded from table of contents.  More flexible replacements for titles and footers.  Fill is now the default for table columns.  Column width is specified as a percentage rather that using latex-specific notation.  Fix missing variable replace for <code>code-block</code> title.</p>
                    </release-item>

                    <release-item>
                        <p>Add <id>id</id> param for hosts created with <code>host-add</code>.  The <id>host-*-ip</id> variable is created from the <id>id</id> param so the <id>name</id> param can be changed without affecting the <id>host-*-ip</id> variable.  If <id>id</id> is not specified then it is copied from <id>name</id>.</p>
                    </release-item>

                    <release-item>
                        <p>Deploy historical documentation to <path>prior</path> rather than the root directory.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <p>Run valgrind on all C unit tests.</p>
                    </release-item>

                    <release-item>
                        <p>Only build C binary/library for Perl unit/integration tests or C unit tests that require Perl.</p>
                    </release-item>

                    <release-item>
                        <p>Improve speed of C unit tests.  Preserve object files between tests and use a Makefile to avoid rebuilding object files.</p>
                    </release-item>

                    <release-item>
                        <p>Report coverage errors via the console.  This helps with debugging coverage issues on remote services like Travis.</p>
                    </release-item>

                    <release-item>
                        <p>No longer run <id>master</id> branch through CI. The <id>integration</id> branch will be run through CI and then pushed to <id>master</id> with github status checks.</p>
                    </release-item>

                    <release-item>
                        <p>Rename Perl tests so they don't conflict with their C counterparts.</p>
                    </release-item>

                    <release-item>
                        <p>Update URL for Debian package repository.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2018-07-05" version="1.29" title="Critical Bug Fix for Backup Resume">
            <release-core-list>
                <p><b>IMPORTANT NOTE</b>: This release fixes a critical bug in the backup resume feature. All resumed backups prior to this release should be considered inconsistent. A backup will be resumed after a prior backup fails, unless <br-option>resume=n</br-option> has been specified. A resumed backup can be identified by checking the backup log for the message <quote>aborted backup of same type exists, will be cleaned to remove invalid files and resumed</quote>. If the message exists, do not use this backup or any backup in the same set for a restore and check the restore logs to see if a resumed backup was restored. If so, there may be inconsistent data in the cluster.</p>

                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="david.youatt"/>
                            <release-item-ideator id="yogesh.sharma"/>
                            <release-item-ideator id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>Fix critical bug in resume that resulted in inconsistent backups.  A regression in <id>v0.82</id> removed the timestamp comparison when deciding which files from the aborted backup to keep on resume. See note above for more details.</p>
                    </release-item>

                     <release-item>
                         <release-item-contributor-list>
                             <release-item-contributor id="andrew.schwartz"/>
                         </release-item-contributor-list>

                         <p>Fix non-compliant ISO-8601 timestamp format in S3 authorization headers.  AWS and some gateways were tolerant of space rather than zero-padded hours while others were not.</p>
                     </release-item>

                     <release-item>
                         <release-item-contributor-list>
                             <release-item-ideator id="craig.a.james"/>
                         </release-item-contributor-list>

                         <p>Fix directory syncs running recursively when only the specified directory should be synced.</p>
                     </release-item>

                     <release-item>
                         <release-item-contributor-list>
                             <release-item-ideator id="brad.nicholson"/>
                         </release-item-contributor-list>

                         <p>Fix <br-option>--target-action</br-option> and <br-option>--recovery-option</br-option> options being reported as invalid when restoring with <br-option>--type=immediate</br-option>.</p>
                     </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="yummyliu"/>
                            <release-item-ideator id="vitaliy.kukharik"/>
                        </release-item-contributor-list>

                        <p>Fix <br-option>archive-copy</br-option> throwing <quote>path not found</quote> error for incr/diff backups.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="vitaliy.kukharik"/>
                        </release-item-contributor-list>

                        <p>Fix failure in manifest build when two or more files in <id>PGDATA</id> are linked to the same directory.</p>
                    </release-item>

                     <release-item>
                         <p>Fix delta restore failing when a linked file was missing.</p>
                     </release-item>

                     <release-item>
                         <release-item-contributor-list>
                             <release-item-ideator id="nj.baliyan"/>
                             <release-item-contributor id="cynthia.shang"/>
                         </release-item-contributor-list>

                         <p>Fix error in selective restore when only one user database exists in the cluster.</p>
                     </release-item>
                </release-bug-list>

                <release-improvement-list>
                     <release-item>
                         <release-item-contributor-list>
                             <release-item-ideator id="adam.k.sumner"/>
                         </release-item-contributor-list>

                         <p>Improve the HTTP client to set <id>content-length</id> to 0 when not specified by the server.  S3 (and gateways) always set <id>content-length</id> or <id>transfer-encoding</id> but <id>HTTP 1.1</id> does not require it and proxies (e.g. <proper>HAProxy</proper>) may not include either.</p>
                     </release-item>

                    <release-item>
                        <p>Improve performance of HTTPS client.  Buffering now takes the <code>pending</code> bytes on the socket into account (when present) rather than relying entirely on <code>select()</code>.  In some instances the final bytes would not be flushed until the connection was closed.</p>
                    </release-item>

                     <release-item>
                         <p>Improve S3 delete performance.  The constant <id>S3_BATCH_MAX</id> had been replaced with a hard-coded value of 2, probably during testing.</p>
                     </release-item>

                     <release-item>
                         <p>Make backup/restore path sync more efficient.  Scanning the entire directory can be very expensive if there are a lot of small tables.  The backup manifest contains the path list so use it to perform syncs instead of scanning the backup/restore path.  Remove recursive path sync functionality since it is no longer used.</p>
                     </release-item>
                </release-improvement-list>

                <release-development-list>
                     <release-item>
                         <p>Make <path>backup.history</path> sync more efficient.  Only the <path>backup.history/[year]</path> directory was being synced, so check if the <path>backup.history</path> is newly created and sync it as well.</p>
                     </release-item>

                     <release-item>
                         <p>Add log-level-stderr option for stanza-* commands.</p>
                     </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="viorel.tabara"/>
                        </release-item-contributor-list>

                        <p>Update docs with 32-bit support and caveats. 32-bit support was added in <proper>v1.26</proper>.</p>
                    </release-item>
                </release-bug-list>

                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                        <release-item-ideator id="david.youatt"/>
                    </release-item-contributor-list>

                        <p>Clarify that S3 buckets must be created by the user.</p>
                    </release-item>

                    <release-item>
                        <p>Update out-of-date description for the <br-option>spool-path</br-option> option.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                     <release-item>
                         <p>Remove call to <file>lscpu</file> which can vary widely by build host.</p>
                     </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-development-list>
                     <release-item>
                         <p>Add new test for <code>Common::Io::Process</code> to show that output on stderr will raise an exception on <code>close()</code> even if the exit code is 0.</p>
                     </release-item>

                     <release-item>
                         <p>Add zero-length file to <id>mock</id>/<id>all</id> test.</p>
                     </release-item>

                    <release-item>
                        <p>Disable package build tests since <id>v1</id> will no longer be packaged.  Users installing packages should update to <id>v2</id>. <id>v1</id> builds are intended for users installing from source.</p>
                    </release-item>

                    <release-item>
                        <p>Update SSL error message test on CentOS 7.</p>
                    </release-item>

                    <release-item>
                        <p>Update URL for Debian package repository.</p>
                    </release-item>

                    <release-item>
                        <p>Make <file>ls</file> ordering deterministic in <id>mock</id>/<id>all</id> test.</p>
                    </release-item>

                    <release-item>
                        <p>Change backup test user from <id>backrest</id> to <id>pgbackrest</id>.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2018-02-01" version="1.28" title="Stanza Delete">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="chiranjeevi.ravilla"/>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Fixed inability to restore a single database contained in a tablespace using --db-include.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="adam.k.sumner"/>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Ensure latest <id>db-id</id> is selected on when matching <file>archive.info</file> to <file>backup.info</file>.  This provides correct matching in the event there are <id>system-id</id> and <id>db-version</id> duplicates (e.g. after reverting a <id>pg_upgrade</id>).</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jason.odonnell"/>
                            <release-item-contributor id="david.steele"/>
                        </release-item-contributor-list>

                        <p>Fixed overly chatty error message when reporting an invalid command.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="magnus.hagander"/>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Add <cmd>stanza-delete</cmd> command to cleanup unused stanzas.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Improve <cmd>stanza-create</cmd> command so that it does not error when the stanza already exists.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Minor changes to <code>Manifest</code> module, mostly for test reproducibility.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Fix non-compliant formatting for function declarations.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jason.odonnell"/>
                        </release-item-contributor-list>

                        <p>Update <cmd>stanza-create --force</cmd> documentation to urge caution when using.</p>
                    </release-item>
                </release-improvement-list>
            </release-doc-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Add unit tests for the <code>Manifest</code> module.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2017-12-19" version="1.27" title="Bug Fixes and Documentation">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="sebastien.lardiere"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue that suppressed locality errors for <cmd>backup</cmd> and <cmd>restore</cmd>.  When a backup host is present, backups should only be allowed on the backup host and restores should only be allowed on the database host unless an alternate configuration is created that ignores the remote host.</p>
                    </release-item>

                     <release-item>
                         <release-item-contributor-list>
                             <release-item-ideator id="adam.brusselback"/>
                         </release-item-contributor-list>

                         <p>Fixed an issue where WAL was not expired on <postgres/> 10.  This was caused by a faulty regex that expected all <postgres/> major versions to be X.X.</p>
                     </release-item>

                    <release-item>
                        <p>Fixed an issue where the <br-option>--no-config</br-option> option was not passed to child processes.  This meant the child processes would still read the local config file and possibly cause unexpected behaviors.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Fixed <cmd>info</cmd> command to eliminate <code>"db (prior)"</code> output if no backups or archives exist for a prior version of the cluster.</p>
                    </release-item>
                </release-bug-list>

                <release-development-list>
                    <release-item>
                        <p>Add <code>memGrowRaw()</code> to memory context module.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="markus.nullmeier"/>
                        </release-item-contributor-list>

                        <p>Document the relationship between the <br-option>archive-copy</br-option> and <br-option>archive-check</br-option> options.</p>
                    </release-item>

                    <release-item>
                        <p>Improve <br-option>archive-copy</br-option> reference documentation.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <p>Relax permissions set by <file>release.pl</file>.</p>
                    </release-item>

                    <release-item>
                        <p>Split <quote>refactor</quote> sections into <quote>improvements</quote> and <quote>development</quote> in the release notes.  Many development notes are not relevant to users and simply clutter the release notes, so they are no longer shown on the website.</p>
                    </release-item>

                    <release-item>
                        <p>Allow internal options that do not show up in the documentation.  Used for test options initially but other use cases are on the horizon.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <p>Update CI branches to <path>release/1</path> and <path>release/1-integration</path>.</p>
                    </release-item>

                    <release-item>
                        <p>No longer run <id>release/1</id> branch through CI. The <id>release/1-integration</id> branch will be run through CI and then pushed to <id>release/1</id> with github status checks.</p>
                    </release-item>

                    <release-item>
                        <p>Move restore test infrastructure to <code>HostBackup.pm</code>.  Required to test restores on the backup server, a fairly common scenario.  Improve the restore function to accept optional parameters rather than a long list of parameters. In passing, clean up extraneous use of <code>strType</code> and <code>strComment</code> variables.</p>
                    </release-item>

                    <release-item>
                        <p>Sync time to prevent build failures when running on VirtualBox.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2017-11-21" version="1.26" title="Repository Encryption">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="craig.a.james"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue that could cause copying large manifests to fail during restore.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="javier.wilson"/>
                        </release-item-contributor-list>

                        <p>Fixed incorrect WAL offset for 32-bit architectures.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="clinton.adams"/>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue retrieving WAL for old database versions.  After a <cmd>stanza-upgrade</cmd> it should still be possible to restore backups from the previous version and perform recovery with <cmd>archive-get</cmd>.  However, archive-get only checked the most recent db version/id and failed.  Also clean up some issues when the same db version/id appears multiple times in the history.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jeff.mccormick"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue with invalid backup groups being set correctly on restore.  If the backup cannot map a group to a name it stores the group in the manifest as <id>false</id> then uses either the owner of $PGDATA to set the group during restore or failing that the group of the current user.  This logic was not working correctly because the selected group was overwriting the user on restore leaving the group undefined and the user incorrectly set to the group.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="uspen"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue passing parameters to remotes.  When more than one db was specified the path, port, and socket path would for db1 were passed no matter which db was actually being addressed.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                            <release-item-contributor id="david.steele"/>
                        </release-item-contributor-list>

                        <p>Repository encryption support.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <p>Disable gzip filter when <br-option>--compress-level-network=0</br-option>.  The filter was used with compress level set to 0 which added overhead without any benefit.</p>
                    </release-item>

                    <release-item>
                        <p>Inflate performance improvement for gzip filter.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Refactor protocol param generation into a new function.  This allows the code to be tested more precisely and doesn't require executing a remote process.</p>
                    </release-item>

                    <release-item>
                        <p>Add <id>list</id> type for options.  The <id>hash</id> type was being used for lists with an additional flag (`value-hash`) to indicate that it was not really a hash.</p>
                    </release-item>

                    <release-item>
                        <p>Remove configurable option hints. <br-option>db-path</br-option> was the only option with a hint so the feature seemed wasteful.  All missing stanza options now output the same hint without needing configuration.</p>
                    </release-item>

                    <release-item>
                        <p>Convert configuration definitions from auto-generated functions to auto-generated data structures.</p>
                    </release-item>

                    <release-item>
                        <p>Add <id>eof</id> to S3 file driver (required for encryption support).</p>
                    </release-item>

                    <release-item>
                        <p>Enable additional warnings for C builds.</p>
                    </release-item>

                    <release-item>
                        <p>Simplify try..catch..finally names.  Also wrap in a do...while loop to make sure that no random else is attached to the main if block.</p>
                    </release-item>

                    <release-item>
                        <p>Improve base64 implementation.  Different encoded strings could be generated based on compiler optimizations. Even though decoding was still successful the encoded strings did not match the standard.</p>
                    </release-item>

                    <release-item>
                        <p>Disable <id>-Wclobber</id> compiler warning because it is mostly useless but keep the rest of of <id>-Wextra</id>.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Add template to improve initial information gathered for issue submissions.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="keith.fiske"/>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Clarify usage of the <br-option>archive-timeout</br-option> option and describe how it is distinct from the <postgres/> <pg-option>archive_timeout</pg-option> setting.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Update <file>release.pl</file> to push data to site repository.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-feature-list>
                    <release-item>
                        <p>Automated tests for 32-bit i386/i686 architecture.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <p>Update Debian/Ubuntu containers to download latest version of <file>pip</file>.</p>
                    </release-item>

                    <release-item>
                        <p>Full unit test coverage for gzip filter.</p>
                    </release-item>

                    <release-item>
                        <p>Only check expect logs on CentOS 7.  Variations in distros cause false negatives in tests but don't add much value.</p>
                    </release-item>

                    <release-item>
                        <p>Fix flapping protocol timeout test.  It only matters that the correct error code is returned, so disable logging to prevent message ordering from failing the expect test.</p>
                    </release-item>

                    <release-item>
                        <p>Designate a single distro (Ubuntu 16.04) for coverage testing.  Running coverage testing on multiple distros takes time but doesn't add significant value.  Also ensure that the distro designated to run coverage tests is one of the default test distros.  For C tests, enable optimizations on the distros that don't do coverage testing.</p>
                    </release-item>

                    <release-item>
                        <p>Automate generation of WAL and <file>pg_control</file> test files.  The existing static files would not work with 32-bit or big-endian systems so create functions to generate these files dynamically rather than creating a bunch of new static files.</p>
                    </release-item>

                    <release-item>
                        <p>Refactor C unit test macros so they compile with <id>-Wstrict-aliasing</id>.</p>
                    </release-item>

                    <release-item>
                        <p>Refactor C page checksum unit test to compile with <id>-Wstrict-aliasing</id>.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2017-10-24" version="1.25" title="S3 Performance Improvements">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jens.wilke"/>
                        </release-item-contributor-list>

                        <p>Fix custom settings for <br-option>compress-level</br-option> option being ignored.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="benoit.lobréau"/>
                        </release-item-contributor-list>

                        <p>Remove error when overlapping timelines are detected.  Overlapping timelines are valid in many Point-in-Time-Recovery (PITR) scenarios.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jason.odonnell"/>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Fix instances where <id>database-id</id> was not rendered as an integer in JSON info output.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="mihail.shvein"/>
                        </release-item-contributor-list>

                        <p>Improve performance of list requests on S3.  Any beginning literal portion of a filter expression is used to generate a search prefix which often helps keep the request small enough to avoid rate limiting.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <p>Improve protocol error handling.  In particular, <quote>stop</quote> errors are no longer reported as <quote>unexpected</quote>.</p>
                    </release-item>

                    <release-item>
                        <p>Allow functions with sensitive options to be logged at debug level with redactions.  Previously, functions with sensitive options had to be logged at trace level to avoid exposing them.  Trace level logging may still expose secrets so use with caution.</p>
                    </release-item>

                    <release-item>
                        <p>Replace dynamically built class hierarchies in I/O layer with fixed <code>parent()</code> calls.</p>
                    </release-item>

                    <release-item>
                        <p>Improve labeling for errors in helper processes.</p>
                    </release-item>

                    <release-item>
                        <p>Update C naming conventions.</p>
                    </release-item>

                    <release-item>
                        <p>Use <id>int</id> datatype wherever possible.</p>
                    </release-item>

                    <release-item>
                        <p>Better separation of C source from Perl interface.</p>
                    </release-item>

                    <release-item>
                        <p>Add <file>LibC.template.pm</file> to simplify LibC module generation.</p>
                    </release-item>

                    <release-item>
                        <p>Add C error handler.</p>
                    </release-item>

                    <release-item>
                        <p>Perl error handler recognizes errors thrown from the C library.</p>
                    </release-item>

                    <release-item>
                        <p>Page checksum module uses new C error handler.</p>
                    </release-item>

                    <release-item>
                        <p>Add C memory contexts.</p>
                    </release-item>

                    <release-item>
                        <p>Add base64 encode/decode.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-test-list>
                <release-feature-list>
                    <release-item>
                        <p>Add I/O performance tests.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <p>Add C unit test infrastructure.</p>
                    </release-item>

                    <release-item>
                        <p>Add test macros for C results and errors.</p>
                    </release-item>

                    <release-item>
                        <p>Warnings in C builds treated as errors.</p>
                    </release-item>

                    <release-item>
                        <p>Run all tests on tempfs rather than local disk.</p>
                    </release-item>

                    <release-item>
                        <p>Improve performance of test code. Wait when all tests have been assigned to reduce CPU load.</p>
                    </release-item>

                    <release-item>
                        <p>Remove Debian test repo after PostgreSQL 10 release.</p>
                    </release-item>

                    <release-item>
                        <p>Convert config and page checksum tests into C unit tests.</p>
                    </release-item>

                    <release-item>
                        <p>Add <postgres/> versions to Debian VMs for testing.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2017-09-28" version="1.24" title="New Backup Exclusions">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="uspen"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where warnings were being emitted in place of lower priority log messages during backup from standby initialization.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="uspen"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where some <id>db-*</id> options (e.g. <br-option>db-port</br-option>) were not being passed to remotes.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <p>Exclude contents of <path>pg_snapshots</path>, <path>pg_serial</path>, <path>pg_notify</path>, and <path>pg_dynshmem</path> from backup since they are rebuilt on startup.</p>
                    </release-item>

                    <release-item>
                        <p>Exclude <file>pg_internal.init</file> files from backup since they are rebuilt on startup.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jens.wilke"/>
                        </release-item-contributor-list>

                        <p>Open log file after async process is completely separated from the main process to prevent the main process from also logging to the file.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Dynamically generate list of files for C library build.</p>
                    </release-item>

                    <release-item>
                        <p>Break up <file>LibC.xs</file> into separate module files.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-feature-list>
                    <release-item>
                        <p>Add passwordless SSH configuration.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <p>Rename <proper>master</proper> to <proper>primary</proper> in documentation to align with <postgres/> convention.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Add full installation where required and remove doc containers that included parts of the installation.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <p>Improve C library smart build by ignoring changes outside of <path>/lib/pgBackRest/Config</path>.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2017-09-03" version="1.23" title="Multiple Standbys and PostgreSQL 10 Support">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jesper.st.john"/>
                            <release-item-ideator id="aleksandr.rogozin"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue that could cause compression to abort on growing files.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="william.cox"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue with keep-alives not being sent to the remote from the local process.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Up to seven standbys can be configured for backup from standby.</p>
                    </release-item>

                    <release-item>
                        <p><postgres/> 10 support.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="victor.gdalevich"/>
                        </release-item-contributor-list>

                        <p>Allow <id>content-length</id> (in addition to chunked encoding) when reading XML data to improve compatibility with third-party S3 gateways.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <p>Increase HTTP timeout for S3.</p>
                    </release-item>

                    <release-item>
                        <p>Add HTTP retries to harden against transient S3 network errors.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Configuration definitions are now pulled from the C library when present.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Fixed document generation to include section summaries on the Configuration page.</p>
                    </release-item>
                </release-bug-list>

                <release-development-list>
                    <release-item>
                        <p>Move contributor list to the end of <file>release.xml</file> for convenience.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <p>Change log test order to ignore unimportant log errors while shutting down <postgres/>.</p>
                    </release-item>

                    <release-item>
                        <p>Drain <id>stderr</id> during test process execution as well as termination to prevent lockups if there is a lot of output.</p>
                    </release-item>

                    <release-item>
                        <p>Update Docker build in <file>Vagrantfile</file>.</p>
                    </release-item>

                    <release-item>
                        <p>Update containers to support C library builds in the documentation.</p>
                    </release-item>

                    <release-item>
                        <p>Simplify smart logic for C Library and package builds.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2017-08-09" version="1.22" title="Fixed S3 Retry">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <p>Fixed authentication issue in S3 retry.</p>
                    </release-item>
                </release-bug-list>
            </release-core-list>
        </release>

        <release date="2017-08-08" version="1.21" title="Improved Info Output and SSH Port Option">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>The <path>archive_status</path> directory is now recreated on restore to support <postgres/> 8.3 which does not recreate it automatically like more recent versions do.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue that could cause the empty archive directory for an old <postgres/> version to be left behind after a <cmd>stanza-upgrade</cmd>.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Modified the <cmd>info</cmd> command (both text and JSON output) to display the archive ID and minimum/maximum WAL currently present in the archive for the current and prior, if any, database cluster version.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Added <br-option>--backup-ssh-port</br-option> and <br-option>--db-ssh-port</br-option> options to support non-default SSH ports.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <p>Retry when S3 returns an internal error (500).</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Add <id>bIgnoreMissing</id> parameter to <code>Local->manifest()</code>.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-bug-list>
                    <release-item>
                        <p>Fix description of <br-option>--online</br-option> based on the command context.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <p>Add creation of <file>/etc/pgbackrest.conf</file> to manual installation instructions.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>Move repository options into a separate section in command/command-line help.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Reduce log verbosity when building documentation by only logging sections that contain an execute list directly or in a child section.</p>
                    </release-item>

                    <release-item>
                        <p>Debian/Ubuntu documentation now builds on Ubuntu 16.</p>
                    </release-item>

                    <release-item>
                        <p>Remove vestigial repository options from <cmd>backup</cmd> command.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <p>Fix log checking after <postgres/> shuts down to include <id>FATAL</id> messages and disallow immediate shutdowns which can throw <id>FATAL</id> errors in the log.</p>
                    </release-item>

                    <release-item>
                        <p>Use Google DNS in test environment for consistency.</p>
                    </release-item>

                    <release-item>
                        <p>Use new Travis Trusty image.</p>
                    </release-item>

                    <release-item>
                        <p>Generate global fake cert in containers for testing.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Consolidate <id>stanza-create</id> and <id>stanza-upgrade</id> tests into new <id>stanza</id> test.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2017-06-27" version="1.20" title="Critical 8.3/8.4 Bug Fix">
            <release-core-list>
                <p><b>IMPORTANT NOTE</b>: <postgres/> <proper>8.3</proper> and <proper>8.4</proper> installations utilizing tablespaces should upgrade immediately from any <proper>v1</proper> release and run a full backup.  A bug prevented tablespaces from being backed up on these versions only.  <postgres/> &amp;ge; <proper>9.0</proper> is not affected.</p>

                <release-bug-list>
                    <release-item>
                        <p>Fixed an issue that prevented tablespaces from being backed up on <postgres/> &amp;le; <proper>8.4</proper>.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="adrian.vondendriesch"/>
                        </release-item-contributor-list>

                        <p>Fixed missing flag in C library build that resulted in a mismatched binary on 32-bit systems.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="scott.frazer"/>
                        </release-item-contributor-list>

                        <p>Add <br-option>s3-repo-ca-path</br-option> and <br-option>s3-repo-ca-file</br-option> options to accommodate systems where CAs are not automatically found by <code>IO::Socket::SSL</code>, i.e. <proper>RHEL7</proper>, or to load custom CAs.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <p>Harden protocol handshake to handle race conditions.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed misleading error message when a file was opened for write in a missing directory.</p>
                    </release-item>

                    <release-item>
                        <p>Change log level of hardlink logging to <id>detail</id>.</p>
                    </release-item>

                    <release-item>
                        <p>Cast size in S3 manifest to integer.</p>
                    </release-item>

                    <release-item>
                        <p>Rename <code>Archive</code> modules to remove redundancy.</p>
                    </release-item>

                    <release-item>
                        <p>Improve <proper>S3</proper> error reporting.</p>
                    </release-item>

                    <release-item>
                        <p>Minor optimizations to package loads and ordering for <cmd>archive-get</cmd> and <cmd>archive-push</cmd> commands.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-development-list>
                    <release-item>
                        <p>Remove exhaustive version list from Stable Releases TOC.</p>
                    </release-item>

                    <release-item>
                        <p>Improve <proper>S3</proper> server implementation in documentation.</p>
                    </release-item>

                    <release-item>
                        <p>Update <proper>CentOS 6</proper> documentation to build on <postgres/> 9.5.</p>
                    </release-item>

                    <release-item>
                        <p>Remove <id>mount</id> from host <code>cache-key</code> because it can vary by system.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-feature-list>
                    <release-item>
                        <p>Add documentation builds to CI.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <p>Fix timeouts in <code>ExecuteTest</code> to speed multi-process testing.</p>
                    </release-item>

                    <release-item>
                        <p>Remove patch directory before Debian package builds.</p>
                    </release-item>

                    <release-item>
                        <p>Combine hardlink and non/compressed in synthetic tests to reduce test time and improve coverage.</p>
                    </release-item>

                    <release-item>
                        <p>Split <id>full</id> module into <id>mock</id> and <id>real</id> to allow better test combinations and save time in CI.</p>
                    </release-item>

                    <release-item>
                        <p>Consolidate <id>archive-push</id> and <id>archive-get</id> tests into new <id>archive</id> test.</p>
                    </release-item>

                    <release-item>
                        <p>Eliminate redundancy in <id>real</id> tests.</p>
                    </release-item>

                    <release-item>
                        <p>Install <id>sudo</id> in base containers rather than on demand.</p>
                    </release-item>

                    <release-item>
                        <p>More optimized container suite that greatly improves build time.</p>
                    </release-item>

                    <release-item>
                        <p>Added static Debian packages for <code>Devel::Cover</code> to reduce build time.</p>
                    </release-item>

                    <release-item>
                        <p>Add <id>deprecated</id> state for containers.  Deprecated containers may only be used to build packages.</p>
                    </release-item>

                    <release-item>
                        <p>Remove <proper>Debian 8</proper> from CI because it does not provide additional coverage over <proper>Ubuntu 12.04, 14.04, 16.04</proper>.</p>
                    </release-item>

                    <release-item>
                        <p>Add <proper>Debian 9</proper> to test suite.</p>
                    </release-item>

                    <release-item>
                        <p>Remove <setting>process-max</setting> option.  Parallelism is now tested in a more targeted manner and the high level option is no longer needed.</p>
                    </release-item>

                    <release-item>
                        <p>Balance database versions between VMs to minimize test duration.</p>
                    </release-item>

                    <release-item>
                        <p>Automatically check that all supported <postgres/> versions are being tested on a single default VM.</p>
                    </release-item>

                    <release-item>
                        <p>Add <id>performance</id> module and basic performance test for <cmd>archive-push</cmd>.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2017-06-12" version="1.19" title="S3 Support">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Fixed the <cmd>info</cmd> command so the WAL archive min/max displayed is for the current database version.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Fixed the <cmd>backup</cmd> command so the <br-setting>backup-standby</br-setting> option is reset (and the backup proceeds on the primary) if the standby is not configured and/or reachable.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Fixed config warnings raised from a remote process causing errors in the master process.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-reviewer id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p><proper>Amazon S3</proper> repository support.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-reviewer id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Refactor storage layer to allow for new repository filesystems using drivers.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-reviewer id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Refactor IO layer to allow for new compression formats, checksum types, and other capabilities using filters.</p>
                    </release-item>

                    <release-item>
                        <p>Move modules in <path>Protocol</path> directory in subdirectories.</p>
                    </release-item>

                    <release-item>
                        <p>Move backup modules into <path>Backup</path> directory.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-bug-list>
                    <release-item>
                        <p>Changed invalid <setting>max-archive-mb</setting> option in configuration reference to <br-setting>archive-queue-max</br-setting>.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="laetitia"/>
                        </release-item-contributor-list>

                        <p>Fixed missing <code>sudo</code> in installation section.</p>
                    </release-item>
                </release-bug-list>
            </release-doc-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <p>Fixed an undefined variable when a module had no uncoverable code exceptions.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed issue with <setting>--dry-run</setting> requiring <setting>--vm-out</setting> to work properly.</p>
                    </release-item>

                    <release-item>
                        <p>Moved test and env modules to new directories to avoid namespace conflicts with common tests.</p>
                    </release-item>

                    <release-item>
                        <p>Set <setting>--vm-max=2</setting> for CI.</p>
                    </release-item>

                    <release-item>
                        <p>Remove flapping protocol timeout test that will be replaced in the upcoming storage patch.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2017-04-12" version="1.18" title="Stanza Upgrade, Refactoring, and Locking Improvements">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jens.wilke"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where read-only operations that used local worker processes (i.e. <cmd>restore</cmd>) were creating write locks that could interfere with parallel <cmd>archive-push</cmd>.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Added the stanza-upgrade command to provide a mechanism for upgrading a stanza after upgrading to a new major version of <postgres/>.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Added validation of <setting>pgbackrest.conf</setting> to display warnings if options are not valid or are not in the correct section.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <p>Simplify locking scheme.  Now, only the master process will hold write locks (for <cmd>archive-push</cmd> and <cmd>backup</cmd> commands) and not all local and remote worker processes as before.</p>
                    </release-item>

                    <release-item>
                        <p>Do not set timestamps of files in the backup directories to match timestamps in the cluster directory.  This was originally done to enable backup resume, but that process is now implemented with checksums.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="yogesh.sharma"/>
                        </release-item-contributor-list>

                        <p>Improved error message when the <cmd>restore</cmd> command detects the presence of <file>postmaster.pid</file>.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="yogesh.sharma"/>
                        </release-item-contributor-list>

                        <p>Renumber return codes between 25 and 125 to avoid PostgreSQL interpreting some as fatal signal exceptions.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Refactor <code>Ini.pm</code> to facilitate testing.</p>
                    </release-item>

                    <release-item>
                        <p>The <cmd>backup</cmd> and <cmd>restore</cmd> commands no longer copy via temp files.  In both cases the files are checksummed on resume so there's no danger of partial copies.</p>
                    </release-item>

                    <release-item>
                        <p>Allow functions to accept optional parameters as a hash.</p>
                    </release-item>

                    <release-item>
                        <p>Refactor <code>File->list()</code> and <code>fileList()</code> to accept optional parameters.</p>
                    </release-item>

                    <release-item>
                        <p>Refactor <code>backupLabel()</code> and add unit tests.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Silence some perl critic warnings.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-development-list>
                    <release-item>
                        <p>Update wording for release note sections.</p>
                    </release-item>

                    <release-item>
                        <p>Ignore clock skew in container libc/package builds using make.  It is common for containers to have clock skew so the build process takes care of this issue independently.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <p>Complete statement/branch coverage for <code>Ini.pm</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Improved functions used to test/munge manifest and info files.</p>
                    </release-item>

                    <release-item>
                        <p>Coverage testing always enabled on Debian-based containers.</p>
                    </release-item>

                    <release-item>
                        <p>Require description in every call to <code>testResult()</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Make <code>iWaitSeconds</code> an optional parameter for <code>testResult()</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Updated vagrant to new version and image.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed flapping archive stop tests.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Added ability to test warning messages.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2017-03-13" version="1.17" title="Page Checksum Bug Fix">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where newly initialized (but unused) pages would cause page checksum warnings.</p>
                    </release-item>
                </release-bug-list>
            </release-core-list>
        </release>

        <release date="2017-03-02" version="1.16" title="Page Checksum Improvements, CI, and Package Testing">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where tables over 1GB would report page checksum warnings after the first segment.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="benoit.lobréau"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where databases created with a non-default tablespace would raise bogus warnings about <file>pg_filenode.map</file> and <file>pg_internal.init</file> not being page aligned.</p>
                    </release-item>
                </release-bug-list>

                <release-development-list>
                    <release-item>
                        <p>Improved the code and tests for <code>fileManifest()</code> to prevent a possible race condition when files are removed by the database while the manifest is being built.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-development-list>
                    <release-item>
                        <p>Container executions now load the user's environment.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-feature-list>
                    <release-item>
                        <p>Continuous integration using <id>travis-ci</id>.</p>
                    </release-item>

                    <release-item>
                        <p>Automated builds of Debian packages for all supported distributions.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <p>Added <setting>--dev</setting> option to aggregate commonly used dev options.</p>
                    </release-item>

                    <release-item>
                        <p>Added <setting>--retry</setting> option.</p>
                    </release-item>

                    <release-item>
                        <p>Added <setting>--no-package</setting> option to skip package builds.</p>
                    </release-item>

                    <release-item>
                        <p>C library and packages are built by default, added <setting>-smart</setting> option to rebuild only when file changes are detected.</p>
                    </release-item>

                    <release-item>
                        <p>The <setting>--libc-only</setting> option has been changed to <setting>--build-only</setting> now that packages builds have been added.</p>
                    </release-item>

                    <release-item>
                        <p>Improved formatting of <code>testResult()</code> output.</p>
                    </release-item>

                    <release-item>
                        <p>Improved truncation when outputting errors logs in the <code>ExecuteTest</code> module.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed flapping archive-stop test with <code>testResult()</code> retries.</p>
                    </release-item>

                    <release-item>
                        <p>Added final test of archive contents to archive-push test.</p>
                    </release-item>

                    <release-item>
                        <p>Temporarily disable flapping keep-alive test.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2017-02-13" version="1.15" title="Refactoring and Bug Fixes">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="navid.golpayegani"/>
                        </release-item-contributor-list>

                        <p>Fixed a regression introduced in <proper>v1.13</proper> that could cause backups to fail if files were removed (e.g. tables dropped) while the manifest was being built.</p>
                    </release-item>
                </release-bug-list>

                <release-development-list>
                    <release-item>
                        <p>Refactor <code>FileCommon::fileManifest()</code> and <code>FileCommon::fileStat</code> to be more modular to allow complete branch/statement level coverage testing.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <p>Complete branch/statement level coverage testing for <code>FileCommon::fileManifest()</code> and <code>FileCommon::fileStat</code> functions and helper functions.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2017-02-13" version="1.14" title="Refactoring and Bug Fixes">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jens.wilke"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where an archive-push error would not be retried and would instead return errors to <postgres/> indefinitely (unless the <file>.error</file> file was manually deleted).</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jens.wilke"/>
                        </release-item-contributor-list>

                        <p>Fixed a race condition in parallel archiving where creation of new paths generated an error when multiple processes attempted to do so at the same time.</p>
                    </release-item>
                </release-bug-list>

                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jens.wilke"/>
                        </release-item-contributor-list>

                        <p>Improved performance of <id>wal archive min/max</id> provided by the <cmd>info</cmd> command.</p>
                    </release-item>
                </release-improvement-list>
            </release-core-list>

            <release-doc-list>
                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jens.wilke"/>
                        </release-item-contributor-list>

                        <p>Updated async archiving documentation to more accurately describe how the new method works and how it differs from the old method.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <p>Documentation can now be built with reusable blocks to reduce duplication.</p>
                    </release-item>

                    <release-item>
                        <p>Improved support for <setting>--require</setting> option and section depends now default to the previous section.</p>
                    </release-item>

                    <release-item>
                        <p>Added ability to pass options to containers within the documentation.</p>
                    </release-item>

                    <release-item>
                        <p>Add <code>proper</code> tag to slightly emphasize proper nouns.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>
        </release>

        <release date="2017-02-05" version="1.13" title="Parallel Archiving, Stanza Create, Improved Info and Check">
            <release-core-list>
                <p><b>IMPORTANT NOTE</b>: The new implementation of asynchronous archiving no longer copies WAL to a separate queue. If there is any WAL left over in the old queue after upgrading to <id>1.13</id>, it will be abandoned and <b>not</b> pushed to the repository.

                To prevent this outcome, stop archiving by setting <setting>archive_command = false</setting>. Next, drain the async queue by running <code>pgbackrest --stanza=[stanza-name] archive-push</code> and wait for the process to complete.  Check that the queue in <path>[spool-path]/archive/[stanza-name]/out</path> is empty. Finally, install <code>1.13</code> and restore the original <setting>archive_command</setting>.

                <b>IMPORTANT NOTE</b>: The <cmd>stanza-create</cmd> command is not longer optional and must be executed before backup or archiving can be performed on a <b>new</b> stanza.  Pre-existing stanzas do not require <cmd>stanza-create</cmd> to be executed.</p>

                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="adrian.vondendriesch"/>
                        </release-item-contributor-list>

                        <p>Fixed const assignment giving compiler warning in C library.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed a few directory syncs that were missed for the <br-option>--repo-sync</br-option> option.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="leonardo.gg.avellar"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where a missing user/group on restore could cause an <quote>uninitialized value</quote> error in <code>File->owner()</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed an issue where protocol mismatch errors did not output the expected value.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed a spurious <cmd>archive-get</cmd> log message that indicated an exit code of 1 was an abnormal termination.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <p>Improved, multi-process implementation of asynchronous archiving.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Improved <cmd>stanza-create</cmd> command so that it can repair broken repositories in most cases and is robust enough to be made mandatory.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Improved <cmd>check</cmd> command to run on a standby, though only basic checks are done because <code>pg_switch_xlog()</code> cannot be executed on a replica.</p>
                    </release-item>

                    <release-item>
                        <p>Added archive and backup WAL ranges to the <cmd>info</cmd> command.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="benoit.lobréau"/>
                        </release-item-contributor-list>

                        <p>Added warning to update <code>pg_tablespace.spclocation</code> when remapping tablespaces in <postgres/> &lt; 9.2.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.vitale"/>
                        </release-item-contributor-list>

                        <p>Remove remote lock requirements for the <cmd>archive-get</cmd>, <cmd>restore</cmd>, <cmd>info</cmd>, and <cmd>check</cmd> commands since they are read-only operations.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jens.wilke"/>
                        </release-item-contributor-list>

                        <p>Log file banner is not output until the first log entry is written.</p>
                    </release-item>

                    <release-item>
                        <p>Reduced the likelihood of torn pages causing a false positive in page checksums by filtering on start backup LSN.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="adrian.vondendriesch"/>
                        </release-item-contributor-list>

                        <p>Remove Intel-specific optimization from C library build flags.</p>
                    </release-item>

                    <release-item>
                        <p>Remove <br-option>--lock</br-option> option.  This option was introduced before the lock directory could be located outside the repository and is now obsolete.</p>
                    </release-item>

                    <release-item>
                        <p>Added <br-option>--log-timestamp</br-option> option to allow timestamps to be suppressed in logging.  This is primarily used to avoid filters in the automated documentation.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="yogesh.sharma"/>
                        </release-item-contributor-list>

                        <p>Return proper error code when unable to convert a relative path to an absolute path.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Refactor <code>File</code> and <code>BackupCommon</code> modules to improve test coverage.</p>
                    </release-item>

                    <release-item>
                        <p>Moved <code>File->manifest()</code> into the <code>FileCommon.pm</code> module.</p>
                    </release-item>

                    <release-item>
                        <p>Moved the <code>Archive</code> modules to the <path>Archive</path> directory and split the <cmd>archive-get</cmd> and <cmd>archive-push</cmd> commands into separate modules.</p>
                    </release-item>

                    <release-item>
                        <p>Split the <cmd>check</cmd> command out of the <code>Archive.pm</code> module.</p>
                    </release-item>

                    <release-item>
                        <p>Allow logging to be suppressed via <code>logDisable()</code> and <code>logEnable()</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Allow for locks to be taken more than once in the same process without error.</p>
                    </release-item>

                    <release-item>
                        <p>Lock directories can be created when more than one directory level is required.</p>
                    </release-item>

                    <release-item>
                        <p>Clean up <code>optionValid()</code>/<code>optionTest()</code> logic in <code>Lock.pm</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Added <code>Exception::exceptionCode()</code> and <code>Exception::exceptionMessage()</code> to simplify error handling logic.</p>
                    </release-item>

                    <release-item>
                        <p>Represent <file>.gz</file> extension with a constant.</p>
                    </release-item>

                    <release-item>
                        <p>Allow empty files to be created with <code>FileCommon::fileStringWrite()</code> and use temp files to avoid partial reads.</p>
                    </release-item>

                    <release-item>
                        <p>Refactor process IO and process master/minion code out from the common protocol code.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed alignment issues with multiline logging.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Added documentation to the User Guide for the <br-option>process-max</br-option> option.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <p>Update LICENSE.txt for 2017.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <p>Fixed <br-option>--no-online</br-option> tests to suppress expected errors.</p>
                    </release-item>

                    <release-item>
                        <p>Added integration for testing coverage with <code>Devel::Cover</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Added unit tests for low-level functions in the <code>File</code> and <code>BackupCommon</code> modules.</p>
                    </release-item>

                    <release-item>
                        <p>C Library builds only run when C library has actually changed.</p>
                    </release-item>

                    <release-item>
                        <p>Added more flexibility in initializing and cleaning up after modules and tests.</p>
                    </release-item>

                    <release-item>
                        <p><code>testResult()</code> suppresses logging and reports exceptions.</p>
                    </release-item>

                    <release-item>
                        <p><code>testException()</code> allows messages to be matched with regular expressions.</p>
                    </release-item>

                    <release-item>
                        <p>Split test modules into separate files to make the code more maintainable.  Tests are dynamically loaded by name rather than requiring an if-else block.</p>
                    </release-item>

                    <release-item>
                        <p>Allow multiple <setting>--module</setting>, <setting>--test</setting>, and <setting>--run</setting> options to be used for <file>test.pl</file>.</p>
                    </release-item>

                    <release-item>
                        <p>Added expect log expression to replace year subdirectories in <path>backup.history</path>.</p>
                    </release-item>

                    <release-item>
                        <p>Refactor name/locations of common modules that setup test environments.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2016-12-12" version="1.12" title="Page Checksums, Configuration, and Bug Fixes">
            <release-core-list>
                 <p><b>IMPORTANT NOTE</b>: In prior releases it was possible to specify options on the command-line that were invalid for the current command without getting an error.  An error will now be generated for invalid options so it is important to carefully check command-line options in your environment to prevent disruption.</p>

                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="nikhilchandra.kulkarni"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where options that were invalid for the specified command could be provided on the command-line without generating an error.  The options were ignored and did not cause any change in behavior, but it did lead to some confusion.  Invalid options will now generate an error.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed an issue where internal symlinks were not being created for tablespaces in the repository.  This issue was only apparent when trying to bring up clusters in-place manually using filesystem snapshots and did not affect normal backup and restore.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="adrian.vondendriesch"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue that prevented errors from being output to the console before the logging system was initialized, i.e. while parsing options. Error codes were still being returned accurately so this would not have made a process look like it succeeded when it did not.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.vitale"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where the <br-option>db-port</br-option> option specified on the backup server would not be properly passed to the remote unless it was from the first configured database.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>Added the <br-option>--checksum-page</br-option> option to allow pgBackRest to validate page checksums in data files when checksums are enabled on <postgres/> >= 9.3.  Note that this functionality requires a C library which may not initially be available in OS packages.  The option will automatically be enabled when the library is present and checksums are enabled on the cluster.</p>
                    </release-item>

                    <release-item>
                        <p>Added the <br-option>--repo-link</br-option> option to allow internal symlinks to be suppressed when the repository is located on a filesystem that does not support symlinks.  This does not affect any <backrest/> functionality, but the convenience link <path>latest</path> will not be created and neither will internal tablespace symlinks, which will affect the ability to bring up clusters in-place manually using filesystem snapshots.</p>
                    </release-item>

                    <release-item>
                        <p>Added the <br-option>--repo-sync</br-option> option to allow directory syncs in the repository to be disabled for file systems that do not support them, e.g. NTFS.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jens.wilke"/>
                        </release-item-contributor-list>

                        <p>Added a predictable log entry to signal that a command has completed successfully. For example a backup ends successfully with: <code>INFO: backup command end: completed successfully</code>.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <p>For simplicity, the <file>pg_control</file> file is now copied with the rest of the files instead of by itself of at the end of the process.  The <cmd>backup</cmd> command does not require this behavior and the <cmd>restore</cmd> copies to a temporary file which is renamed at the end of the restore.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Abstracted code to determine which database cluster is the primary and which are standbys.</p>
                    </release-item>

                    <release-item>
                        <p>Improved consistency and flexibility of the protocol layer by using JSON for all messages.</p>
                    </release-item>

                    <release-item>
                        <p>File copy protocol now accepts a function that can do additional processing on the copy buffers and return a result to the calling process.</p>
                    </release-item>

                    <release-item>
                        <p>Improved <code>IO->bufferRead</code> to always return requested number of bytes until EOF.</p>
                    </release-item>

                    <release-item>
                        <p>Simplified the result hash of <code>File->manifest()</code>, <code>Db->tablespaceMapGet()</code>, and <code>Db->databaseMapGet()</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Improved errors returned from child processes by removing redundant error level and code.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Code cleanup in preparation for improved <cmd>stanza-create</cmd> command.</p>
                    </release-item>

                    <release-item>
                        <p>Improved parameter/result logging in debug/trace functions.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-bug-list>
                    <release-item>
                        <p>Fixed an issue that suppressed exceptions in PDF builds.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed regression in section links introduced in <proper>v1.10</proper>.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <p>Added Retention to QuickStart section.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <p>Allow a source to be included as a section so large documents can be broken up.</p>
                    </release-item>

                    <release-item>
                        <p>Added section link support to Markdown output.</p>
                    </release-item>

                    <release-item>
                        <p>Added list support to PDF output.</p>
                    </release-item>

                    <release-item>
                        <p>Added <setting>include</setting> option to explicitly build sources (complements the <setting>exclude</setting> option though both cannot be used in the same invocation).</p>
                    </release-item>

                    <release-item>
                        <p>Added <setting>keyword-add</setting> option to add keywords without overriding the <id>default</id> keyword.</p>
                    </release-item>

                    <release-item>
                        <p>Added <setting>debug</setting> option to <file>doc.pl</file> to easily add the <id>debug</id> keyword to documentation builds.</p>
                    </release-item>

                    <release-item>
                        <p>Added <setting>pre</setting> option to <file>doc.pl</file> to easily add the <id>pre</id> keyword to documentation builds.</p>
                    </release-item>

                    <release-item>
                        <p>Builds in <file>release.pl</file> now remove all docker containers to get consistent IP address assignments.</p>
                    </release-item>

                    <release-item>
                        <p>Improvements to markdown rendering.</p>
                    </release-item>

                    <release-item>
                        <p>Remove code dependency on <id>project</id> variable, instead use <id>title</id> param.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <p>Removed erroneous <br-option>--no-config</br-option> option in <id>help</id> test module.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Update control and WAL test files to <id>9.4</id> with matching system identifiers.</p>
                    </release-item>

                    <release-item>
                        <p>Improved exception handling in file unit tests.</p>
                    </release-item>

                    <release-item>
                        <p>Changed the <br-option>--no-fork</br-option> test option to <br-option>--fork</br-option> with negation to match all other boolean parameters.</p>
                    </release-item>

                    <release-item>
                        <p>Various improvements to validation of backup and restore.</p>
                    </release-item>

                    <release-item>
                        <p>Add more realistic data files to synthetic backup and restore tests.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2016-11-17" version="1.11" title="Bug Fix for Asynchronous Archiving Efficiency">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where asynchronous archiving was transferring one file per execution instead of transferring files in batches.  This regression was introduced in <proper>v1.09</proper> and affected efficiency only, all WAL segments were correctly archived in asynchronous mode.</p>
                    </release-item>
                </release-bug-list>
            </release-core-list>
        </release>

        <release date="2016-11-08" version="1.10" title="Stanza Creation and Minor Bug Fixes">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <p>Fixed an issue where a backup could error if no changes were made to a database between backups and only <file>pg_control</file> changed.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="nikhilchandra.kulkarni"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where tablespace paths with the same prefix would cause an invalid link error.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Added the <cmd>stanza-create</cmd> command to formalize creation of stanzas in the repository.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="devrim.gunduz"/>
                        </release-item-contributor-list>

                        <p>Removed extraneous <code>use lib</code> directives from Perl modules.</p>
                    </release-item>
                </release-improvement-list>
            </release-core-list>

            <release-doc-list>
                <release-development-list>
                    <release-item>
                        <p>Fixed missing variable replacements.</p>
                    </release-item>

                    <release-item>
                        <p>Removed hard-coded host names from configuration file paths.</p>
                    </release-item>

                    <release-item>
                        <p>Allow command-line length to be configured using <id>cmd-line-len</id> param.</p>
                    </release-item>

                    <release-item>
                        <p>Added <id>compact</id> param to allow CSS to be embedded in HTML file.</p>
                    </release-item>

                    <release-item>
                        <p>Added <id>pretty</id> param to produce HTML with proper indenting.</p>
                    </release-item>

                    <release-item>
                        <p>Only generate HTML menu when required and don't require index page.</p>
                    </release-item>

                    <release-item>
                        <p>Assign numbers to sections by default.</p>
                    </release-item>

                    <release-item>
                        <p>VM mount points are now optional.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>
        </release>

        <release date="2016-10-10" version="1.09" title="9.6 Support, Configurability, and Bug Fixes">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Fixed the <cmd>check</cmd> command to prevent an error message from being logged if the backup directory does not exist.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jason.odonnell"/>
                        </release-item-contributor-list>

                        <p>Fixed error message to properly display the archive command when an invalid archive command is detected.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jens.wilke"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where the async archiver would not be started if <cmd>archive-push</cmd> did not have enough space to queue a new WAL segment.  This meant that the queue would never be cleared without manual intervention (such as calling <cmd>archive-push</cmd> directly).  <postgres/> now receives errors when there is not enough space to store new WAL segments but the async process will still be started so that space is eventually freed.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jens.wilke"/>
                        </release-item-contributor-list>

                        <p>Fixed a remote timeout that occurred when a local process generated checksums (during resume or restore) but did not copy files, allowing the remote to go idle.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <p>Non-exclusive backups will automatically be used on <postgres/> 9.6.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jens.wilke"/>
                        </release-item-contributor-list>

                        <p>Added the <br-option>cmd-ssh</br-option> option to allow the ssh client to be specified.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="sascha.biberhofer"/>
                        </release-item-contributor-list>

                        <p>Added the <br-option>log-level-stderr</br-option> option to control whether console log messages are sent to <id>stderr</id> or <id>stdout</id>.  By default this is set to <setting>warn</setting> which represents a change in behavior from previous versions, even though it may be more intuitive.  Setting <br-option>log-level-stderr=off</br-option> will preserve the old behavior.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jens.wilke"/>
                        </release-item-contributor-list>

                        <p>Set <id>application_name</id> to <id>"pgBackRest [command]"</id> for database connections.</p>
                    </release-item>

                    <release-item>
                        <p>Check that archive_mode is enabled when <br-option>archive-check</br-option> option enabled.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jens.wilke"/>
                        </release-item-contributor-list>

                        <p>Clarified error message when unable to acquire <backrest/> advisory lock to make it clear that it is not a <postgres/> backup lock.</p>
                    </release-item>

                    <release-item>
                        <p><backrest/> version number included in command start INFO log output.</p>
                    </release-item>

                    <release-item>
                        <p>Process ID logged for local process start/stop INFO log output.</p>
                    </release-item>
                </release-improvement-list>
            </release-core-list>

            <release-doc-list>
                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Added <br-option>archive-timeout</br-option> option documentation to the user guide.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <p>Added <setting>dev</setting> option to <file>doc.pl</file> to easily add the <id>dev</id> keyword to documentation builds.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <p>Update CentOS/Debian package definitions.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed missing expect output for help module.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed broken <id>vm-max</id> option in <file>test.pl</file>.</p>
                    </release-item>

                    <release-item>
                        <p>Regression tests can now be run as any properly-configured user, not just vagrant.</p>
                    </release-item>

                    <release-item>
                        <p>Miminize TeXLive package list to save time during VM builds.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2016-09-14" version="1.08" title="Bug Fixes and Log Improvements">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="todd.vernick"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where local processes were not disconnecting when complete and could later timeout.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="todd.vernick"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where the protocol layer could timeout while waiting for WAL segments to arrive in the archive.</p>
                    </release-item>
                </release-bug-list>

                <release-improvement-list>
                    <release-item>
                        <p>Cache file log output until the file is created to create a more complete log.</p>
                    </release-item>
                </release-improvement-list>
            </release-core-list>

            <release-doc-list>
                <release-development-list>
                    <release-item>
                        <p>Show Process ID in output instead of filtering it out with the timestamp.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="john.harvey"/>
                        </release-item-contributor-list>

                        <p>Suppress <quote>dpkg-reconfigure: unable to re-open stdin: No file or directory</quote> warning in Vagrant VM build.</p>
                    </release-item>

                    <release-item>
                        <p>Show Process ID in expect logs instead of filtering it out with the timestamp.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2016-09-07" version="1.07" title="Thread to Process Conversion and Bug Fixes">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <p>Fixed an issue where tablespaces were copied from the primary during standby backup.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Fixed the <cmd>check</cmd> command so backup info is checked remotely and not just locally.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where <br-option>retention-archive</br-option> was not automatically being set when <br-option>retention-archive-type=diff</br-option>, resulting in a less aggressive than intended expiration of archive.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <p>Converted Perl threads to processes to improve compatibility and performance.</p>
                    </release-item>

                    <release-item>
                        <p>Exclude contents of <path>$PGDATA/pg_replslot</path> directory so that replication slots on the primary do not become part of the backup.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jens.wilke"/>
                        </release-item-contributor-list>

                        <p>The <setting>archive-start</setting> and <setting>archive-stop</setting> settings are now filled in <file>backup.manifest</file> even when <br-option>archive-check=n</br-option>.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Additional warnings when archive retention settings may not have the intended effect or would allow indefinite retention.</p>
                    </release-item>

                    <release-item>
                        <p>Experimental support for non-exclusive backups in <postgres/> 9.6 rc1.  Changes to the control/catalog/WAL versions in subsequent release candidates may break compatibility but <backrest/> will be updated with each release to keep pace.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <p>Refactor of protocol minions in preparation for the new local minion.</p>
                    </release-item>

                    <release-item>
                        <p>Remove obsolete thread index variable from <code>File()</code> module.</p>
                    </release-item>

                    <release-item>
                        <p>Changed temporary file names to consistently use the <file>.pgbackrest.tmp</file> extension even if the destination file is compressed or has an appended checksum.</p>
                    </release-item>

                    <release-item>
                        <p>Improve ASSERT error handling, safely check eval blocks, and convert <code>$@</code> to <code>$EVAL_ERROR</code>.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-bug-list>
                    <release-item>
                        <p>Fixed minor documentation reproducibility issues related to binary paths.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Documentation for archive retention.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <p>Suppress TOC for unsupported versions of <backrest/>.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <p>New vagrant base box and make uid/gid selection for containers dynamic.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2016-08-25" version="1.06" title="Backup from Standby and Bug Fixes">
             <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.vitale"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where a tablespace link that referenced another link would not produce an error, but instead skip the tablespace entirely.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.vitale"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where options that should not allow multiple values could be specified multiple times in <file>pgbackrest.conf</file> without an error being raised.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="todd.vernick"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where the <br-option>protocol-timeout</br-option> option was not automatically increased when the <br-option>db-timeout</br-option> option was increased.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <p>Backup from a standby cluster.  A connection to the primary cluster is still required to start/stop the backup and copy files that are not replicated, but the vast majority of files are copied from the standby in order to reduce load on the primary.</p>
                    </release-item>

                    <release-item>
                        <p>More flexible configuration for databases.  Master and standby can both be configured on the backup server and <backrest/> will automatically determine which is the primary.  This means no configuration changes for backup are required after failing over from a primary to standby when a separate backup server is used.</p>
                    </release-item>

                    <release-item>
                        <p>Exclude directories during backup that are cleaned, recreated, or zeroed by <postgres/> at startup.  These include <path>pgsql_tmp</path> and <path>pg_stat_tmp</path>.  The <file>postgresql.auto.conf.tmp</file> file is now excluded in addition to files that were already excluded: <file>backup_label.old</file>, <file>postmaster.opts</file>, <file>postmaster.pid</file>, <file>recovery.conf</file>, <file>recovery.done</file>.</p>
                    </release-item>

                    <release-item>
                        <p>Experimental support for non-exclusive backups in <postgres/> 9.6 beta4.  Changes to the control/catalog/WAL versions in subsequent betas may break compatibility but <backrest/> will be updated with each release to keep pace.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <p>Improve error message for links that reference links in manifest build.</p>
                    </release-item>

                    <release-item>
                        <p>Added hints to error message when relative paths are detected in <cmd>archive-push</cmd> or <cmd>archive-get</cmd>.</p>
                    </release-item>

                    <release-item>
                        <p>Improve backup log messages to indicate which host the files are being copied from.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Simplify protocol creation and identifying which host is local/remote.</p>
                    </release-item>

                    <release-item>
                        <p>Removed all <code>OP_*</code> function constants that were used only for debugging, not in the protocol, and replaced with <code>__PACKAGE__</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Improvements in <code>Db</code> module: separated out <code>connect()</code> function, allow <code>executeSql()</code> calls that do not return data, and improve error handling.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

             <release-doc-list>
                 <release-development-list>
                    <release-item>
                        <p>Improve host tag rendering.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

             <release-test-list>
                 <release-development-list>
                    <release-item>
                        <p>Refactor db version constants into a separate module.</p>
                    </release-item>

                    <release-item>
                        <p>Update synthetic backup tests to <postgres/> 9.4.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2016-08-09" version="1.05" title="Bug Fix for Tablespace Link Checking">
             <release-core-list>
                 <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="chris.fort"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where tablespace paths that had $PGDATA as a substring would be identified as a subdirectories of $PGDATA even when they were not.  Also hardened relative path checking a bit.</p>
                    </release-item>
                </release-bug-list>
            </release-core-list>

            <release-doc-list>
                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Added documentation for scheduling backups with cron.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Moved the backlog from the <backrest/> website to the GitHub repository wiki.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Improved rendering of spaces in code blocks.</p>
                    </release-item>
                 </release-development-list>
            </release-doc-list>
        </release>

         <release date="2016-07-30" version="1.04" title="Various Bug Fixes">
             <release-core-list>
                 <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.vitale"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue an where an extraneous remote was created causing threaded backup/restore to possibly timeout and/or throw a lock conflict.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.vitale"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where db-path was not required for the <cmd>check</cmd> command so an assert was raised when it was missing rather than a polite error message.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="david.steele"/>
                            <release-item-contributor id="cynthia.shang"/>
                            <release-item-reviewer id="david.steele"/>
                        </release-item-contributor-list>

                        <p>Fixed <cmd>check</cmd> command to throw an error when database version/id does not match that of the archive.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="sebastien.lardiere"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where a remote could try to start its own remote when the <br-option>backup-host</br-option> option was not present in <file>pgbackrest.conf</file> on the database server.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed an issue where the contents of <path>pg_xlog</path> were being backed up if the directory was symlinked.  This didn't cause any issues during restore but was a waste of space.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed an invalid <code>log()</code> call in lock routines.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <p>Experimental support for non-exclusive backups in <postgres/> 9.6 beta3.  Changes to the control/catalog/WAL versions in subsequent betas may break compatibility but <backrest/> will be updated with each release to keep pace.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <p>Suppress banners on SSH protocol connections.</p>
                    </release-item>

                    <release-item>
                        <p>Improved remote error messages to identify the host where the error was raised.</p>
                    </release-item>

                    <release-item>
                        <p>All remote types now take locks.  The exceptions date to when the test harness and <backrest/> were running in the same VM and no longer apply.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Enhancements to the protocol layer for improved reliability and error handling.</p>
                    </release-item>

                    <release-item>
                        <p>Exceptions are now passed back from threads as messages when possible rather than raised directly.</p>
                    </release-item>

                    <release-item>
                        <p>Temp files created during backup are now placed in the same directory as the target file.</p>
                    </release-item>

                    <release-item>
                        <p>Output lock file name when a lock cannot be acquired to aid in debugging.</p>
                    </release-item>

                    <release-item>
                        <p>Reduce calls to <code>protocolGet()</code> in backup/restore.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

             <release-doc-list>
                 <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.vitale"/>
                        </release-item-contributor-list>

                        <p>Added clarification on why the default for the <br-option>backrest-user</br-option> option is <id>backrest</id>.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.vitale"/>
                        </release-item-contributor-list>

                        <p>Updated information about package availability on supported platforms.</p>
                    </release-item>
                </release-feature-list>

                 <release-development-list>
                    <release-item>
                        <p>Added <file>release.pl</file> to make releases reproducible.  For now this only includes building and deploying documentation.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="adrian.vondendriesch"/>
                            <release-item-contributor id="david.steele"/>
                        </release-item-contributor-list>

                        <p>HTML footer dates are statically created in English in order to be reproducible.</p>
                    </release-item>
                 </release-development-list>
            </release-doc-list>

             <release-test-list>
                 <release-development-list>
                    <release-item>
                        <p>Fixed a version checking issue in <file>test.pl</file>.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed an issue where multi-threaded tests were not being run when requested.</p>
                    </release-item>

                    <release-item>
                        <p>Reduce the frequency that certain tests are run to save time in regression.</p>
                    </release-item>

                    <release-item>
                        <p>Disable control master for older OS versions where it is less stable.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
         </release>

         <release date="2016-07-02" version="1.03" title="Check Command and Bug Fixes">
             <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="janice.parkinson"/>
                            <release-item-ideator id="chris.barber"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where <id>keep-alives</id> could be starved out by lots of small files during multi-threaded <cmd>backup</cmd>.  They were also completely absent from single/multi-threaded <cmd>backup</cmd> resume and <cmd>restore</cmd> checksumming.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="chris.barber"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where the <cmd>expire</cmd> command would refuse to run when explicitly called from the command line if the <br-option>db-host</br-option> option was set.  This was not an issue when <cmd>expire</cmd> was run automatically after a <cmd>backup</cmd></p>
                    </release-item>

                    <release-item>
                        <p>Fixed an issue where validation was being running on <pg-setting>archive_command</pg-setting> even when the <br-option>archive-check</br-option> option was disabled.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="david.steele"/>
                            <release-item-contributor id="cynthia.shang"/>
                            <release-item-reviewer id="david.steele"/>
                        </release-item-contributor-list>

                        <p>Added <cmd>check</cmd> command to validate that <backrest/> is configured correctly for archiving and backups.</p>
                    </release-item>

                    <release-item>
                        <p>Added the <br-option>protocol-timeout</br-option> option.  Previously <br-option>protocol-timeout</br-option> was set as <br-option>db-timeout</br-option> + 30 seconds.</p>
                    </release-item>

                    <release-item>
                        <p>Failure to shutdown remotes at the end of the backup no longer throws an exception.  Instead a warning is generated that recommends a higher <br-option>protocol-timeout</br-option>.</p>
                    </release-item>

                    <release-item>
                        <p>Experimental support for non-exclusive backups in <postgres/> 9.6 beta2.  Changes to the control/catalog/WAL versions in subsequent betas may break compatibility but <backrest/> will be updated with each release to keep pace.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <p>Improved handling of users/groups captured during backup that do not exist on the restore host.  Also explicitly handle the case where user/group is not mapped to a name.</p>
                    </release-item>

                    <release-item>
                        <p>Option handling is now far more strict.  Previously it was possible for a command to use an option that was not explicitly assigned to it.  This was especially true for the <br-option>backup-host</br-option> and <br-option>db-host</br-option> options which are used to determine locality.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>The <code>pg_xlogfile_name()</code> function is no longer used to construct WAL filenames from LSNs. While this function is convenient it is not available on a standby.  Instead, the archive is searched for the LSN in order to find the timeline.  If due to some misadventure the LSN appears on multiple timelines then an error will be thrown, whereas before this condition would have passed unnoticed.</p>
                    </release-item>

                    <release-item>
                        <p>Changed version variable to a constant.  It had originally been designed to play nice with a specific packaging tool but that tool was never used.</p>
                    </release-item>
                </release-development-list>
             </release-core-list>

             <release-doc-list>
                 <release-improvement-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="adrian.vondendriesch"/>
                            <release-item-contributor id="david.steele"/>
                        </release-item-contributor-list>

                        <p>Allow a static date to be used for documentation to generate reproducible builds.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="cynthia.shang"/>
                            <release-item-reviewer id="david.steele"/>
                        </release-item-contributor-list>

                        <p>Added documentation for asynchronous archiving to the user guide.</p>
                    </release-item>

                    <release-item>
                        <p>Recommended install location for <backrest/> modules is now <path>/usr/share/perl5</path> since <path>/usr/lib/perl5</path> has been removed from the search path in newer versions of Perl.</p>
                    </release-item>

                    <release-item>
                        <p>Added instructions for removing prior versions of <backrest/>.</p>
                    </release-item>
                 </release-improvement-list>

                 <release-development-list>
                    <release-item>
                        <p>Fixed DTD search path that did not work properly when <setting>--doc-path</setting> was used.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed <backrest/>-specific xml that was loaded for non-<backrest/> projects.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed section names being repeated in the info output when multiple <br-option>--require</br-option> options depended on the same sections.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed <backrest/> config sections being blank in the output when not loaded from cache.</p>
                    </release-item>

                    <release-item>
                        <p>Allow hidden options to be added to a command.  This allows certain commands (like <id>apt-get</id>) to be forced during the build without making that a part of the documentation.</p>
                    </release-item>

                    <release-item>
                        <p>Allow command summaries to be inserted anywhere in the documentation to avoid duplication.</p>
                    </release-item>

                    <release-item>
                        <p>Update TeX Live to 2016 version.</p>
                    </release-item>

                    <release-item>
                        <p>New, consolidated implementation for link rendering.</p>
                    </release-item>

                    <release-item>
                        <p><postgres/> version is now a variable to allow multi-version documentation.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

             <release-test-list>
                 <release-development-list>
                    <release-item>
                        <p>Obsolete containers are removed by the <br-option>--vm-force</br-option> option.</p>
                    </release-item>

                    <release-item>
                        <p>Major refactor of the test suite to make it more modular and object-oriented.  Multiple Docker containers can now be created for a single test to simulate more realistic environments.  Tests paths have been renamed for clarity.</p>
                    </release-item>

                    <release-item>
                        <p>Greatly reduced the quantity of Docker containers built by default.  Containers are only built for <postgres/> versions specified in <id>db-minimal</id> and those required to build documentation. Additional containers can be built with <br-option>--db-version=all</br-option> or by specifying a version, e.g. <br-option>--db-version=9.4</br-option>.</p>
                    </release-item>
                 </release-development-list>
             </release-test-list>
         </release>

         <release date="2016-06-02" version="1.02" title="Bug Fix for Perl 5.22">
             <release-core-list>
                 <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="adrian.vondendriesch"/>
                            <release-item-reviewer id="david.steele"/>
                        </release-item-contributor-list>

                        <p>Fix usage of sprintf() due to new constraints in Perl 5.22. Parameters not referenced in the format string are no longer allowed.</p>
                    </release-item>
                </release-bug-list>

                 <release-development-list>
                    <release-item>
                        <p>Log directory create and file open now using FileCommon functions which produce more detailed error messages on failure.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

             <release-doc-list>
                 <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="christoph.berg"/>
                            <release-item-contributor id="adrian.vondendriesch"/>
                            <release-item-reviewer id="david.steele"/>
                        </release-item-contributor-list>

                        <p>Fixed syntax that was not compatible with Perl 5.2X.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="adrian.vondendriesch"/>
                        </release-item-contributor-list>

                        <p>Fixed absolute paths that were used for the PDF logo.</p>
                    </release-item>
                </release-bug-list>

                 <release-feature-list>
                    <release-item>
                        <p>Release notes are now broken into sections so that bugs, features, and refactors are clearly delineated.  An <quote>Additional Notes</quote> section has been added for changes to documentation and the test suite that do not affect the core code.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="adrian.vondendriesch"/>
                            <release-item-contributor id="david.steele"/>
                        </release-item-contributor-list>

                        <p>Added man page generation.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="david.steele"/>
                            <release-item-contributor id="cynthia.shang"/>
                            <release-item-reviewer id="david.steele"/>
                        </release-item-contributor-list>

                        <p>The change log was the last piece of documentation to be rendered in Markdown only.  Wrote a converter so the document can be output by the standard renderers.  The change log will now be located on the website and has been renamed to <quote>Releases</quote>.</p>
                    </release-item>
                </release-feature-list>

                 <release-development-list>
                    <release-item>
                        <p>Added an execution cache so that documentation can be generated without setting up the full container environment.  This is useful for packaging, keeps the documentation consistent for a release, and speeds up generation when no changes are made in the execution list.</p>
                    </release-item>

                    <release-item>
                        <p>Remove function constants and pass strings directly to logDebugParam().  The function names were only used once so creating constants for them was wasteful.</p>
                    </release-item>

                    <release-item>
                        <p>Lists can now be used outside of <id>p</id> and <id>text</id> tags for more flexible document structuring.</p>
                    </release-item>
                </release-development-list>
             </release-doc-list>

             <release-test-list>
                 <release-development-list>
                    <release-item>
                        <p>Replaced overzealous <code>perl -cW</code> check which failed on Perl 5.22 with <code>perl -cw</code>.</p>
                    </release-item>

                    <release-item>
                        <p>Added Ubuntu 16.04 (Xenial) and Debian 8 (Jessie) to the regression suite.</p>
                    </release-item>

                    <release-item>
                        <p>Upgraded doc/test VM to Ubuntu 16.04.  This will help catch Perl errors in the doc code since it is not run across multiple distributions like the core and test code. It is also to be hoped that a newer kernel will make Docker more stable.</p>
                    </release-item>

                    <release-item>
                        <p>Test release version against the executable using <file>change-log.xml</file> instead of <file>CHANGELOG.md</file>.</p>
                    </release-item>
                </release-development-list>
             </release-test-list>
         </release>

         <release date="2016-05-17" version="1.01" title="Enhanced Info, Selective Restore, and 9.6 Support">
             <release-core-list>
                 <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="david.steele"/>
                            <release-item-contributor id="cynthia.shang"/>
                            <release-item-reviewer id="david.steele"/>
                        </release-item-contributor-list>

                        <p>Enhanced text output of <cmd>info</cmd> command to include timestamps, sizes, and the reference list for all backups.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                            <!-- <release-item-contributor id="david.steele"/> -->
                            <release-item-reviewer id="cynthia.shang"/>
                            <release-item-reviewer id="greg.smith"/>
                            <release-item-reviewer id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>Allow selective restore of databases from a cluster backup.  This feature can result in major space and time savings when only specific databases are restored.  Unrestored databases will not be accessible but must be manually dropped before they will be removed from the shared catalogue.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <!-- <release-item-contributor id="david.steele"/> -->
                            <release-item-reviewer id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>Experimental support for non-exclusive backups in <postgres/> 9.6 beta1.  Changes to the control/catalog/WAL versions in subsequent betas may break compatibility but <backrest/> will be updated with each release to keep pace.</p>
                    </release-item>
                 </release-feature-list>
             </release-core-list>
         </release>

         <release date="2016-04-14" version="1.00" title="New Repository Format and Configuration Scheme, Link Support">
             <release-core-list>
                 <p><b>IMPORTANT NOTE</b>: This flag day release breaks compatibility with older versions of <backrest/>.  The manifest format, on-disk structure, configuration scheme, and the exe/path names have all changed.  You must create a new repository to hold backups for this version of <backrest/> and keep your older repository for a time in case you need to do a restore.  Restores from the prior repository will require the prior version of <backrest/> but because of name changes it is possible to have <id>1.00</id> and a prior version of <backrest/> installed at the same time.  See the notes below for more detailed information on what has changed.</p>

                 <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.renner"/>
                            <!-- <release-item-contributor id="david.steele"/> -->
                        </release-item-contributor-list>

                        <p>Implemented a new configuration scheme which should be far simpler to use.  See the User Guide and Configuration Reference for details but for a simple configuration all options can now be placed in the <setting>stanza</setting> section. Options that are shared between stanzas can be placed in the <setting>[global]</setting> section.  More complex configurations can still make use of command sections though this should be a rare use case.</p>
                    </release-item>

                    <release-item>
                        <p>The <setting>repo-path</setting> option now always refers to the repository where backups and archive are stored, whether local or remote, so the <setting>repo-remote-path</setting> option has been removed.  The new <setting>spool-path</setting> option can be used to define a location for queueing WAL segments when archiving asynchronously.  A local repository is no longer required.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.renner"/>
                            <release-item-ideator id="stephen.frost"/>
                            <!-- <release-item-contributor id="david.steele"/> -->
                        </release-item-contributor-list>

                        <p>The default configuration filename is now <file>pgbackrest.conf</file> instead of <file>pg_backrest.conf</file>.  This was done for consistency with other naming changes but also to prevent old config files from being loaded accidentally when migrating to <id>1.00</id>.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.renner"/>
                            <release-item-ideator id="stephen.frost"/>
                            <!-- <release-item-contributor id="david.steele"/> -->
                        </release-item-contributor-list>

                        <p>The default repository name was changed from <path>/var/lib/backup</path> to <path>/var/lib/pgbackrest</path>.</p>
                    </release-item>

                    <release-item>
                        <!-- <release-item-contributor-list>
                            <release-item-contributor id="david.steele"/>
                        </release-item-contributor-list> -->

                        <p>Lock files are now stored in <path>/tmp/pgbackrest</path> by default. These days <path>/run/pgbackrest</path> is the preferred location but that would require init scripts which are not part of this release.  The <setting>lock-path</setting> option can be used to configure the lock directory.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                            <!-- <release-item-contributor id="david.steele"/> -->
                        </release-item-contributor-list>

                        <p>Log files are now stored in <path>/var/log/pgbackrest</path> by default and no longer have the date appended so they can be managed with <id>logrotate</id>.  The <setting>log-path</setting> option can be used to configure the lock directory.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.renner"/>
                            <release-item-ideator id="stephen.frost"/>
                            <!-- <release-item-contributor id="david.steele"/> -->
                        </release-item-contributor-list>

                        <p>Executable filename changed from <file>pg_backrest</file> to <file>pgbackrest</file>.</p>
                    </release-item>

                    <release-item>
                        <p>All files and directories linked from PGDATA are now included in the backup.  By default links will be restored directly into PGDATA as files or directories.  The <setting>{[dash]}-link-all</setting> option can be used to restore all links to their original locations.  The <setting>{[dash]}-link-map</setting> option can be used to remap a link to a new location.</p>
                    </release-item>

                    <release-item>
                        <p>Removed <setting>{[dash]}-tablespace</setting> option and replaced with <setting>{[dash]}-tablespace-map-all</setting> option which should more clearly indicate its function.</p>
                    </release-item>

                    <release-item>
                        <p>Added <id>detail</id> log level which will output more information than <id>info</id> without being as verbose as <id>debug</id>.</p>
                    </release-item>
                 </release-feature-list>
            </release-core-list>
         </release>

        <release date="2016-04-06" version="0.92" title="Command-line Repository Path Fix">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jan.wieck"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where the master process was passing <setting>{[dash]}-repo-remote-path</setting> instead of <setting>{[dash]}-repo-path</setting> to the remote and causing the lock files to be created in the default repository directory (<path>/var/lib/backup</path>), generally ending in failure.  This was only an issue when <setting>{[dash]}-repo-remote-path</setting> was defined on the command line rather than in <file>pg_backrest.conf</file>.</p>
                    </release-item>
                </release-bug-list>
            </release-core-list>
        </release>

        <release date="2016-03-22" version="0.91" title="Tablespace Bug Fix and Minor Enhancements">
            <release-core-list>
                <p><b>IMPORTANT BUG FIX FOR TABLESPACES</b>: A change to the repository format was accidentally introduced in 0.90 which means the on-disk backup was no longer a valid <postgres/> cluster when the backup contained tablespaces.  This only affected users who directly copied the backups to restore <postgres/> clusters rather than using the restore command.  However, the fix breaks compatibility with older backups that contain tablespaces no matter how they are being restored (<backrest/> will throw errors and refuse to restore).  New full backups should be taken immediately after installing version 0.91 for any clusters that contain tablespaces.  If older backups need to be restored then use a version of <backrest/> that matches the backup version.</p>

                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="evan.benoit"/>
                        </release-item-contributor-list>

                        <p>Fixed repository incompatibility introduced in <backrest/> 0.90.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <p>Copy <file>global/pg_control</file> last during backups.</p>
                    </release-item>

                    <release-item>
                        <p>Write <id>.info</id> and <id>.manifest</id> files to temp before moving them to their final locations and fsync'ing.</p>
                    </release-item>

                    <release-item>
                        <p>Rename <setting>{[dash]}-no-start-stop</setting> option to <setting>{[dash]}-no-online</setting>.</p>
                    </release-item>
                </release-feature-list>
            </release-core-list>

            <release-test-list>
                <release-feature-list>
                    <release-item>
                        <p>Static source analysis using Perl-Critic, currently passes on gentle.</p>
                    </release-item>
                </release-feature-list>
            </release-test-list>
        </release>

        <release date="2016-02-07" version="0.90" title="9.5 Support, Various Enhancements, and Minor Bug Fixes">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="jason.odonnell"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where specifying <setting>{[dash]}-no-archive-check</setting> would throw a configuration error.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed an issue where a temp WAL file left over after a well-timed system crash could cause the next <cmd>archive-push</cmd> to fail.</p>
                    </release-item>

                    <release-item>
                        <p>The <setting>retention-archive</setting> option can now be be safely set to less than backup retention (<setting>retention-full</setting> or <setting>retention-diff</setting>) without also specifying <setting>archive-copy=n</setting>.  The WAL required to make the backups that fall outside of archive retention consistent will be preserved in the archive.  However, in this case PITR will not be possible for the backups that fall outside of archive retention.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <p>When backing up and restoring tablespaces <backrest/> only operates on the subdirectory created for the version of <postgres/> being run against.  Since multiple versions can live in a tablespace (especially during a binary upgrade) this prevents too many files from being copied during a backup and other versions possibly being wiped out during a restore.  This only applies to <postgres/> >= 9.0 &amp;mdash; prior versions of <postgres/> could not share a tablespace directory.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="david.steele"/>
                            <release-item-contributor id="jason.odonnell"/>
                        </release-item-contributor-list>

                        <p>Generate an error when <setting>archive-check=y</setting> but <setting>archive_command</setting> does not execute <file>pg_backrest</file>.</p>
                    </release-item>

                    <release-item>
                        <p>Improved error message when <setting>repo-path</setting> or <setting>repo-remote-path</setting> does not exist.</p>
                    </release-item>

                    <release-item>
                        <p>Added checks for <setting>{[dash]}-delta</setting> and <setting>{[dash]}-force</setting> restore options to ensure that the destination is a valid $PGDATA directory.  <backrest/> will check for the presence of <file>PG_VERSION</file> or <file>backup.manifest</file> (left over from an aborted restore).  If neither file is found then <setting>{[dash]}-delta</setting> and <setting>{[dash]}-force</setting> will be disabled but the restore will proceed unless there are files in the $PGDATA directory (or any tablespace directories) in which case the operation will be aborted.</p>
                    </release-item>

                    <release-item>
                        <p>When restore <setting>{[dash]}-set=latest</setting> (the default) the actual backup restored will be output to the log.</p>
                    </release-item>

                    <release-item>
                        <p>Support for <postgres/> 9.5 partial WAL segments and <setting>recovery_target_action</setting> setting. The <setting>archive_mode = 'always'</setting> setting is not yet supported.</p>
                    </release-item>

                    <release-item>
                        <p>Support for <setting>recovery_target = 'immediate'</setting> recovery setting introduced in <postgres/> 9.4.</p>
                    </release-item>

                    <release-item>
                        <p>The following tablespace checks have been added: paths or files in pg_tblspc, relative links in pg_tblspc, tablespaces in $PGDATA. All three will generate errors.</p>
                    </release-item>
                </release-feature-list>
            </release-core-list>

            <release-doc-list>
                <release-development-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="john.harvey"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where document generation failed because some OSs are not tolerant of having multiple installed versions of <postgres/>.  A separate VM is now created for each version.  Also added a sleep after database starts during document generation to ensure the database is running before the next command runs.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>
        </release>

        <release date="2015-12-24" version="0.89" title="Timeout Bug Fix and Restore Read-Only Repositories">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where longer-running backups/restores would timeout when remote and threaded.  Keepalives are now used to make sure the remote for the main process does not timeout while the thread remotes do all the work.  The error message for timeouts was also improved to make debugging easier.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <p>Allow restores to be performed on a read-only repository by using <setting>{[dash]}-no-lock</setting> and <setting>{[dash]}-log-level-file=off</setting>.  The <setting>{[dash]}-no-lock</setting> option can only be used with restores.</p>
                    </release-item>
                </release-feature-list>
            </release-core-list>

            <release-doc-list>
                <release-development-list>
                    <release-item>
                        <p>Minor styling changes, clarifications and rewording in the user guide.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <p>The dev branch has been renamed to master and for the time being the master branch has renamed to release, though it will probably be removed at some point {[dash]}- thus ends the gitflow experiment for <backrest/>.  It is recommended that any forks get re-forked and clones get re-cloned.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2015-11-22" version="0.88" title="Documentation and Minor Bug Fixes">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="dmitry.didovicher"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where the <cmd>start</cmd>/<cmd>stop</cmd> commands required the <setting>{[dash]}-config</setting> option.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                            <release-item-ideator id="dmitry.didovicher"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where log files were being overwritten instead of appended.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed an issue where <setting>backup-user</setting> was not optional.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>Symlinks are no longer created in backup directories in the repository.  These symlinks could point virtually anywhere and potentially be dangerous.  Symlinks are still recreated during a restore.</p>
                    </release-item>

                    <release-item>
                        <p>Added better messaging for backup expiration.  Full and differential backup expirations are logged on a single line along with a list of all dependent backups expired.</p>
                    </release-item>

                    <release-item>
                        <p>Archive retention is automatically set to full backup retention if not explicitly configured.</p>
                    </release-item>
                </release-feature-list>
            </release-core-list>

            <release-doc-list>
                <release-feature-list>
                    <release-item>
                        <p>Added documentation in the user guide for delta restores, expiration, dedicated backup hosts, starting and stopping <backrest/>, and replication.</p>
                    </release-item>
                </release-feature-list>
            </release-doc-list>
        </release>

        <release date="2015-10-28" version="0.87" title="Website and User Guide">
            <release-core-list>
                <release-feature-list>
                    <release-item>
                        <p>The <file>backup_label.old</file> and <file>recovery.done</file> files are now excluded from backups.</p>
                    </release-item>
                </release-feature-list>
            </release-core-list>

            <release-doc-list>
                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-contributor id="david.steele"/>
                            <release-item-contributor id="stephen.frost"/>
                            <release-item-reviewer id="michael.renner"/>
                            <release-item-reviewer id="cynthia.shang"/>
                            <release-item-reviewer id="eric.radman"/>
                            <release-item-reviewer id="dmitry.didovicher"/>
                        </release-item-contributor-list>

                        <p>Added a new user guide that covers <backrest/> basics and some advanced topics including PITR.  Much more to come, but it's a start.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <p>The website, markdown, and command-line help are now all generated from the same XML source.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>
        </release>

        <release date="2015-10-08" version="0.85" title="Start/Stop Commands and Minor Bug Fixes">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <p>Fixed an issue where an error could be returned after a backup or restore completely successfully.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed an issue where a resume would fail if temp files were left in the root backup directory when the backup failed.  This scenario was likely if the backup process got terminated during the copy phase.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <p>Added <cmd>stop</cmd> and <cmd>start</cmd> commands to prevent <backrest/> processes from running on a system where <postgres/> is shutdown or the system needs to be quiesced for some other reason.</p>
                    </release-item>

                    <release-item>
                        <p>Experimental support for <postgres/> 9.5 beta1.  This may break when the control version or WAL magic changes in future versions but will be updated in each <backrest/> release to keep pace.  All regression tests pass except for <setting>{[dash]}-target-resume</setting> tests (this functionality has changed in 9.5) and there is no testing yet for <file>.partial</file> WAL segments.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <p>Removed dependency on <code>IO::String</code> module.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>
        </release>

        <release date="2015-09-14" version="0.82" title="Refactoring, Command-line Help, and Minor Bug Fixes">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <p>Fixed an issue where resumed compressed backups were not preserving existing files.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed an issue where resume and incr/diff would not ensure that the prior backup had the same compression and hardlink settings.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed an issue where a cold backup using <setting>{[dash]}-no-start-stop</setting> could be started on a running <postgres/> cluster without <setting>{[dash]}-force</setting> specified.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed an issue where a thread could be started even when none were requested.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed an issue where the <backrest/> version number was not being updated in <file>backup.info</file> and <file>archive.info</file> after an upgrade/downgrade.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where the <cmd>info</cmd> command was throwing an exception when the repository contained no stanzas.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where the <postgres/> <code>pg_stop_backup()</code> NOTICEs were being output to <id>stderr</id>.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <p>Experimental support for <postgres/> 9.5 alpha2.  This may break when the control version or WAL magic changes in future versions but will be updated in each <backrest/> release to keep pace.  All regression tests pass except for <setting>{[dash]}-target-resume</setting> tests (this functionality has changed in 9.5) and there is no testing yet for <file>.partial</file> WAL segments.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <p>Renamed <setting>recovery-setting</setting> option and section to <setting>recovery-option</setting> to be more consistent with <backrest/> naming conventions.</p>
                    </release-item>

                    <release-item>
                        <p>Added dynamic module loading to speed up commands, especially asynchronous archiving.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Code cleanup and refactoring to standardize on patterns that have evolved over time.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-feature-list>
                    <release-item>
                        <p>Command-line help is now extracted from the same XML source that is used for the other documentation and includes much more detail.</p>
                    </release-item>
                </release-feature-list>
            </release-doc-list>

            <release-test-list>
                <release-development-list>
                    <release-item>
                        <p>Expiration tests are now synthetic rather than based on actual backups.  This will allow development of more advanced expiration features.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2015-08-09" version="0.80" title="DBI Support, Stability, and Convenience Features">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.renner"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue that caused the formatted timestamp for both the oldest and newest backups to be reported as the current time by the <cmd>info</cmd> command.  Only <id>text</id> output was affected {[dash]}- <id>json</id> output reported the correct epoch values.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed protocol issue that was preventing ssh errors (especially on connection) from being logged.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="cynthia.shang"/>
                        </release-item-contributor-list>

                        <p>The repository is now created and updated with consistent directory and file modes.  By default <id>umask</id> is set to <id>0000</id> but this can be disabled with the <setting>neutral-umask</setting> setting.</p>
                    </release-item>

                    <release-item>
                        <p>Added the <br-option>stop-auto</br-option> option to allow failed backups to automatically be stopped when a new backup starts.</p>
                    </release-item>

                    <release-item>
                        <p>Added the <br-option>db-timeout</br-option> option to limit the amount of time <backrest/> will wait for <code>pg_start_backup()</code> and <code>pg_stop_backup()</code> to return.</p>
                    </release-item>

                    <release-item>
                        <p>Remove <file>pg_control</file> file at the beginning of the restore and copy it back at the very end.  This prevents the possibility that a partial restore can be started by <postgres/>.</p>
                    </release-item>

                    <release-item>
                        <p>Added checks to be sure the <setting>db-path</setting> setting is consistent with <setting>db-port</setting> by comparing the <setting>data_directory</setting> as reported by the cluster against the <setting>db-path</setting> setting and the version as reported by the cluster against the value read from <file>pg_control</file>.  The <setting>db-socket-path</setting> setting is checked to be sure it is an absolute path.</p>
                    </release-item>

                    <release-item>
                        <p>Experimental support for <postgres/> 9.5 alpha1.  This may break when the control version or WAL magic changes in future versions but will be updated in each <backrest/> release to keep pace.  All regression tests pass except for <setting>{[dash]}-target-resume</setting> tests (this functionality has changed in 9.5) and there is no testing yet for <file>.partial</file> WAL segments.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <p>Now using Perl <code>DBI</code> and <code>DBD::Pg</code> for connections to <postgres/> rather than <cmd>psql</cmd>.  The <setting>cmd-psql</setting> and <setting>cmd-psql-option</setting> settings have been removed and replaced with <setting>db-port</setting> and <setting>db-socket-path</setting>.  Follow the instructions in the Installation Guide to install <code>DBD::Pg</code> on your operating system.</p>
                    </release-item>
                </release-improvement-list>

                <release-development-list>
                    <release-item>
                        <p>Major refactoring of the protocol layer to support future development.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-development-list>
                    <release-item>
                        <p>Split most of <file>README.md</file> out into <file>USERGUIDE.md</file> and <file>CHANGELOG.md</file> because it was becoming unwieldy.  Changed most references to <quote>database</quote> in the user guide to <quote>database cluster</quote> for clarity.</p>
                    </release-item>

                    <release-item>
                        <p>Changed most references to <quote>database</quote> in the user guide to <quote>database cluster</quote> for clarity.</p>
                    </release-item>
                </release-development-list>
            </release-doc-list>

            <release-test-list>
                <release-feature-list>
                    <release-item>
                        <p>Added vagrant test configurations for Ubuntu 14.04 and CentOS 7.</p>
                    </release-item>
                </release-feature-list>
            </release-test-list>
        </release>

        <release date="2015-07-13" version="0.78" title="Remove CPAN Dependencies, Stability Improvements">
            <release-core-list>
                <release-improvement-list>
                    <release-item>
                        <p>Removed dependency on CPAN packages for multi-threaded operation.  While it might not be a bad idea to update the <code>threads</code> and <code>Thread::Queue</code> packages, it is no longer necessary.</p>
                    </release-item>
                    <release-item>
                        <p>Modified wait backoff to use a Fibonacci rather than geometric sequence.  This will make wait time grow less aggressively while still giving reasonable values.</p>
                    </release-item>
                </release-improvement-list>
            </release-core-list>

            <release-test-list>
                <release-feature-list>
                    <release-item>
                        <p>Added vagrant test configurations for Ubuntu 12.04 and CentOS 6.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <p>More options for regression tests and improved code to run in a variety of environments.</p>
                    </release-item>
                </release-development-list>
            </release-test-list>
        </release>

        <release date="2015-06-30" version="0.77" title="CentOS/RHEL 6 Support and Protocol Improvements">
            <release-core-list>
                <release-feature-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="andres.freund"/>
                        </release-item-contributor-list>

                        <p>Added file and directory syncs to the <code>File</code> object for additional safety during backup/restore and archiving.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="eric.radman"/>
                        </release-item-contributor-list>

                        <p>Added support for Perl 5.10.1 and OpenSSH 5.3 which are default for CentOS/RHEL 6.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="eric.radman"/>
                        </release-item-contributor-list>

                        <p>Improved error message when backup is run without <setting>archive_command</setting> set and without <setting>{[dash]}-no-archive-check</setting> specified.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <p>Removed <file>pg_backrest_remote</file> and added the functionality to <file>pg_backrest</file> as the <cmd>remote</cmd> command.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.renner"/>
                        </release-item-contributor-list>

                        <p>Moved version number out of the <file>VERSION</file> file to <file>Version.pm</file> to better support packaging.</p>
                    </release-item>

                    <release-item>
                        <p>Replaced <code>IPC::System::Simple</code> and <code>Net::OpenSSH</code> with <code>IPC::Open3</code> to eliminate CPAN dependency for multiple operating systems.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>
        </release>

        <release date="2015-06-14" version="0.75" title="New Repository Format, Info Command and Experimental 9.5 Support">
            <release-core-list>
                <p><b>IMPORTANT NOTE</b>: This flag day release breaks compatibility with older versions of <backrest/>.  The manifest format, on-disk structure, and the binary names have all changed.  You must create a new repository to hold backups for this version of <backrest/> and keep your older repository for a time in case you need to do a restore.  The <file>pg_backrest.conf</file> file has not changed but you'll need to change any references to <file>pg_backrest.pl</file> in cron (or elsewhere) to <file>pg_backrest</file> (without the <file>.pl</file> extension).</p>

                <release-feature-list>
                    <release-item>
                        <p>Added the <cmd>info</cmd> command.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.renner"/>
                        </release-item-contributor-list>

                        <p>Logging now uses unbuffered output.  This should make log files that are being written by multiple threads less chaotic.</p>
                    </release-item>

                    <release-item>
                        <p>Experimental support for <postgres/> 9.5.  This may break when the control version or WAL magic changes but will be updated in each release.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <p>More efficient file ordering for <cmd>backup</cmd>.  Files are copied in descending size order so a single thread does not end up copying a large file at the end.  This had already been implemented for <cmd>restore</cmd>.</p>
                    </release-item>
                </release-improvement-list>
            </release-core-list>
        </release>

        <release date="2015-06-01" version="0.70" title="Stability Improvements for Archiving, Improved Logging and Help">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.renner"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue where <cmd>archive-copy</cmd> would fail on an incr/diff backup when <setting>hardlink=n</setting>.  In this case the <path>pg_xlog</path> path does not already exist and must be created.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.renner"/>
                        </release-item-contributor-list>

                        <p>Fixed an issue in async archiving where <cmd>archive-push</cmd> was not properly returning 0 when <setting>archive-max-mb</setting> was reached and moved the async check after transfer to avoid having to remove the stop file twice.  Also added unit tests for this case and improved error messages to make it clearer to the user what went wrong.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.renner"/>
                        </release-item-contributor-list>

                        <p>Fixed a locking issue that could allow multiple operations of the same type against a single stanza.  This appeared to be benign in terms of data integrity but caused spurious errors while archiving and could lead to errors in backup/restore.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <p>Allow duplicate WAL segments to be archived when the checksum matches.  This is necessary for some recovery scenarios.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.renner"/>
                        </release-item-contributor-list>

                        <p>Allow comments/disabling in <file>pg_backrest.conf</file> using the <id>#</id> character.  Only <id>#</id> characters in the forst character of the line are honored.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.renner"/>
                        </release-item-contributor-list>

                        <p>Better logging before <id>pg_start_backup()</id> to make it clear when the backup is waiting on a checkpoint.</p>
                    </release-item>

                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.renner"/>
                            <release-item-reviewer id="michael.renner"/>
                        </release-item-contributor-list>

                        <p>Various command behavior and logging fixes.</p>
                    </release-item>
                </release-feature-list>

                <release-improvement-list>
                    <release-item>
                        <p>Replaced <code>JSON</code> module with <code>JSON::PP</code> which ships with core Perl.</p>
                    </release-item>
                </release-improvement-list>
            </release-core-list>

            <release-doc-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="michael.renner"/>
                            <release-item-reviewer id="michael.renner"/>
                        </release-item-contributor-list>

                        <p>Various help fixes.</p>
                    </release-item>
                </release-bug-list>
            </release-doc-list>
        </release>

        <release date="2015-05-11" version="0.65" title="Improved Resume and Restore Logging, Compact Restores">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <p>Fixed an issue where an absolute path was not written into <file>recovery.conf</file> when the restore was run with a relative path.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <p>Better resume support.  Resumed files are checked to be sure they have not been modified and the manifest is saved more often to preserve checksums as the backup progresses.  More unit tests to verify each resume case.</p>
                    </release-item>

                    <release-item>
                        <p>Resume is now optional.  Use the <setting>resume</setting> setting or <setting>{[dash]}-no-resume</setting> from the command line to disable.</p>
                    </release-item>

                    <release-item>
                        <p>More info messages during restore.  Previously, most of the restore messages were debug level so not a lot was output in the log.</p>
                    </release-item>

                    <release-item>
                        <p>Added <setting>tablespace</setting> setting to allow tablespaces to be restored into the <path>pg_tblspc</path> path.  This produces compact restores that are convenient for development, staging, etc.  Currently these restores cannot be backed up as <backrest/> expects only links in the <path>pg_tblspc</path> path.</p>
                    </release-item>
                </release-feature-list>
            </release-core-list>
        </release>

        <release date="2015-04-21" version="0.61" title="Bug Fix for Uncompressed Remote Destination">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <p>Fixed a buffering error that could occur on large, highly-compressible files when copying to an uncompressed remote destination.  The error was detected in the decompression code and resulted in a failed backup rather than corruption so it should not affect successful backups made with previous versions.</p>
                    </release-item>
                </release-bug-list>
            </release-core-list>
        </release>

        <release date="2015-04-19" version="0.60" title="Better Version Support and WAL Improvements">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <p>Pushing duplicate WAL now generates an error.  This worked before only if checksums were disabled.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <p>Database System IDs are used to make sure that all WAL in an archive matches up.  This should help prevent misconfigurations that send WAL from multiple clusters to the same archive.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <p>Improved threading model by starting threads early and terminating them late.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-test-list>
                <release-feature-list>
                    <release-item>
                        <p>Regression tests working back to <postgres/> 8.3.</p>
                    </release-item>
                </release-feature-list>
            </release-test-list>
        </release>

        <release date="2015-03-25" version="0.50" title="Restore and Much More">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <p>Fixed broken checksums and now they work with normal and resumed backups.  Finally realized that checksums and checksum deltas should be functionally separated and this simplified a number of things.  Issue #28 has been created for checksum deltas.</p>
                    </release-item>

                    <release-item>
                        <p>Fixed an issue where a backup could be resumed from an aborted backup that didn't have the same type and prior backup.</p>
                    </release-item>
                </release-bug-list>

                <release-feature-list>
                    <release-item>
                        <p>Added restore functionality.</p>
                    </release-item>

                    <release-item>
                        <p>All options can now be set on the command-line making <file>pg_backrest.conf</file> optional.</p>
                    </release-item>

                    <release-item>
                        <p>De/compression is now performed without threads and checksum/size is calculated in stream.  That means file checksums are no longer optional.</p>
                    </release-item>

                    <release-item>
                        <p>Added option <setting>{[dash]}-no-start-stop</setting> to allow backups when Postgres is shut down.  If <file>postmaster.pid</file> is present then <setting>{[dash]}-force</setting> is required to make the backup run (though if Postgres is running an inconsistent backup will likely be created).  This option was added primarily for the purpose of unit testing, but there may be applications in the real world as well.</p>
                    </release-item>

                    <release-item>
                        <p>Checksum for <file>backup.manifest</file> to detect a corrupted/modified manifest.</p>
                    </release-item>

                    <release-item>
                        <p>Link <path>latest</path> always points to the last backup.  This has been added for convenience and to make restores simpler.</p>
                    </release-item>
                </release-feature-list>

                <release-development-list>
                    <release-item>
                        <p>Removed dependency on <code>Moose</code>.  It wasn't being used extensively and makes for longer startup times.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-test-list>
                <release-feature-list>
                    <release-item>
                        <p>More comprehensive unit tests in all areas.</p>
                    </release-item>
                </release-feature-list>
            </release-test-list>
        </release>

        <release date="2014-10-05" version="0.30" title="Core Restructuring and Unit Tests">
            <release-core-list>
                <release-development-list>
                    <release-item>
                        <p>Complete rewrite of <code>BackRest::File</code> module to use a custom protocol for remote operations and Perl native GZIP and SHA operations.  Compression is performed in threads rather than forked processes.</p>
                    </release-item>

                    <release-item>
                        <p>Removed dependency on <code>Storable</code> and replaced with a custom ini file implementation.</p>
                    </release-item>

                    <release-item>
                        <p>Numerous other changes that can only be identified with a diff.</p>
                    </release-item>
                </release-development-list>
            </release-core-list>

            <release-doc-list>
                <release-feature-list>
                    <release-item>
                        <p>Added much needed documentation</p>
                    </release-item>
                </release-feature-list>
            </release-doc-list>

            <release-test-list>
                <release-feature-list>
                    <release-item>
                        <p>Fairly comprehensive unit tests for all the basic operations.  More work to be done here for sure, but then there is always more work to be done on unit tests.</p>
                    </release-item>
                </release-feature-list>
            </release-test-list>
        </release>

        <release date="2014-05-13" version="0.19" title="Improved Error Reporting/Handling">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <p>Found and squashed a nasty bug where <code>file_copy()</code> was defaulted to ignore errors.  There was also an issue in <code>file_exists()</code> that was causing the test to fail when the file actually did exist.  Together they could have resulted in a corrupt backup with no errors, though it is very unlikely.</p>
                    </release-item>
                </release-bug-list>

                <release-development-list>
                    <release-item>
                        <p>Worked on improving error handling in the <code>File</code> object.  This is not complete, but works well enough to find a few errors that have been causing us problems (notably, find is occasionally failing building the archive async manifest when system is under load).</p>
                    </release-item>
                </release-development-list>
            </release-core-list>
        </release>

        <release date="2014-04-13" version="0.18" title="Return Soft Error When Archive Missing">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>The <cmd>archive-get</cmd> command now returns a 1 when the archive file is missing to differentiate from hard errors (ssh connection failure, file copy error, etc.)  This lets <postgres/> know that that the archive stream has terminated normally.  However, this does not take into account possible holes in the archive stream.</p>
                    </release-item>
                </release-bug-list>
            </release-core-list>
        </release>

        <release date="2014-04-03" version="0.17" title="Warn When Archive Directories Cannot Be Deleted">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <p>If an archive directory which should be empty could not be deleted backrest was throwing an error.  There's a good fix for that coming, but for the time being it has been changed to a warning so processing can continue.  This was impacting backups as sometimes the final archive file would not get pushed if the first archive file had been in a different directory (plus some bad luck).</p>
                    </release-item>
                </release-bug-list>
            </release-core-list>
        </release>

        <release date="2014-04-01" version="0.16" title="RequestTTY=yes for SSH Sessions">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <p>Added <setting>RequestTTY=yes</setting> to ssh sessions.  Hoping this will prevent random lockups.</p>
                    </release-item>
                </release-bug-list>
            </release-core-list>
        </release>

        <release date="2014-03-29" version="0.15" title="Added archive-get">
            <release-core-list>
                <release-feature-list>
                    <release-item>
                        <p>Added <cmd>archive-get</cmd> functionality to aid in restores.</p>
                    </release-item>

                    <release-item>
                        <p>Added option to force a checkpoint when starting the backup, <setting>start-fast=y</setting>.</p>
                    </release-item>
                </release-feature-list>
            </release-core-list>
        </release>

        <release date="2014-03-26" version="0.11" title="Minor Fixes">
            <release-core-list>
                <release-bug-list>
                    <release-item>
                        <release-item-contributor-list>
                            <release-item-ideator id="stephen.frost"/>
                        </release-item-contributor-list>

                        <p>Removed <setting>master_stderr_discard</setting> option on database SSH connections.  There have been occasional lockups and they could be related to issues originally seen in the file code.</p>
                    </release-item>

                    <release-item>
                        <p>Changed lock file conflicts on <cmd>backup</cmd> and <cmd>expire</cmd> commands to <id>ERROR</id>.  They were set to <id>DEBUG</id> due to a copy-and-paste from the archive locks.</p>
                    </release-item>
                </release-bug-list>
            </release-core-list>
        </release>

        <release date="2014-03-05" version="0.10" title="Backup and Archiving are Functional">
            <release-core-list>
                <release-feature-list>
                    <release-item>
                        <p>No restore functionality, but the backup directories are consistent <postgres/> data directories.  You'll need to either uncompress the files or turn off compression in the backup.  Uncompressed backups on a ZFS (or similar) filesystem are a good option because backups can be restored locally via a snapshot to create logical backups or do spot data recovery.</p>
                    </release-item>

                    <release-item>
                        <p>Archiving is single-threaded.  This has not posed an issue on our multi-terabyte databases with heavy write volume.  Recommend a large WAL volume or to use the async option with a large volume nearby.</p>
                    </release-item>

                    <release-item>
                        <p>Backups are multi-threaded, but the <code>Net::OpenSSH</code> library does not appear to be 100% thread-safe so it will very occasionally lock up on a thread.  There is an overall process timeout that resolves this issue by killing the process.  Yes, very ugly.</p>
                    </release-item>

                    <release-item>
                        <p>Checksums are lost on any resumed backup. Only the final backup will record checksum on multiple resumes.  Checksums from previous backups are correctly recorded and a full backup will reset everything.</p>
                    </release-item>

                    <release-item>
                        <p>The <file>backup.manifest</file> is being written as <code>Storable</code> because <code>Config::IniFile</code> does not seem to handle large files well.  Would definitely like to save these as human-readable text.</p>
                    </release-item>
                </release-feature-list>
            </release-core-list>

            <release-doc-list>
                <release-feature-list>
                    <release-item>
                        <p>Absolutely no documentation (outside the code).  Well, excepting these release notes.</p>
                    </release-item>
                </release-feature-list>
            </release-doc-list>
        </release>
    </release-list>

    <contributor-list>
        <!-- The first contributor is the default for all release items to simplify the xml -->
        <contributor id="david.steele">
            <contributor-name-display>David Steele</contributor-name-display>
            <contributor-id type="github">dwsteele</contributor-id>
        </contributor>

        <!-- The order of other contributors is alpha by name -->
        <contributor id="adam.brusselback">
            <contributor-name-display>Adam Brusselback</contributor-name-display>
            <contributor-id type="github">Tostino</contributor-id>
        </contributor>

        <contributor id="adam.k.sumner">
            <contributor-name-display>Adam K. Sumner</contributor-name-display>
            <contributor-id type="github">Flamacue</contributor-id>
        </contributor>

        <contributor id="adrian.vondendriesch">
            <contributor-name-display>Adrian Vondendriesch</contributor-name-display>
            <contributor-id type="github">disco-stu</contributor-id>
        </contributor>

        <contributor id="aleksandr.rogozin">
            <contributor-name-display>Aleksandr Rogozin</contributor-name-display>
            <contributor-id type="github">arogozin</contributor-id>
        </contributor>

        <contributor id="andres.freund">
            <contributor-name-display>Andres Freund</contributor-name-display>
            <contributor-id type="github">anarazel</contributor-id>
        </contributor>

        <contributor id="andrew.schwartz">
            <contributor-name-display>Andrew Schwartz</contributor-name-display>
            <contributor-id type="github">trinchan</contributor-id>
        </contributor>

        <contributor id="benoit.lobréau">
            <contributor-name-display>blogh</contributor-name-display>
            <contributor-id type="github">blogh</contributor-id>
        </contributor>

        <contributor id="brad.nicholson">
            <contributor-name-display>Brad Nicholson</contributor-name-display>
            <contributor-id type="github">bradnicholson</contributor-id>
        </contributor>

        <contributor id="brian.faherty">
            <contributor-name-display>Brian Faherty</contributor-name-display>
            <contributor-id type="github">scrummyin</contributor-id>
        </contributor>

        <contributor id="bruce.burdick">
            <contributor-name-display>Bruce Burdick</contributor-name-display>
            <contributor-id type="github">baburdick</contributor-id>
        </contributor>

        <contributor id="bruno.friedmann">
            <contributor-name-display>Bruno Friedmann</contributor-name-display>
            <contributor-id type="github">tigerfoot</contributor-id>
        </contributor>

        <contributor id="camilo.aguilar">
            <contributor-name-display>Camilo Aguilar</contributor-name-display>
            <contributor-id type="github">c4milo</contributor-id>
        </contributor>

        <contributor id="chiranjeevi.ravilla">
            <contributor-name-display>Chiranjeevi Ravilla</contributor-name-display>
        </contributor>

        <contributor id="chris.barber">
            <contributor-name-display>Chris Barber</contributor-name-display>
            <contributor-id type="github">gamerscomplete</contributor-id>
        </contributor>

        <contributor id="chris.fort">
            <contributor-name-display>Chris Fort</contributor-name-display>
            <contributor-id type="github">the1forte</contributor-id>
        </contributor>

        <contributor id="christoph.berg">
            <contributor-name-display>Christoph Berg</contributor-name-display>
            <contributor-id type="github">ChristophBerg</contributor-id>
        </contributor>

        <contributor id="christophe.courtois">
            <contributor-name-display>Christophe Courtois</contributor-name-display>
            <contributor-id type="github">Krysztophe</contributor-id>
        </contributor>

        <contributor id="christophe.pettus">
            <contributor-name-display>Christophe Pettus</contributor-name-display>
            <contributor-id type="github">Xof</contributor-id>
        </contributor>

        <contributor id="clinton.adams">
            <contributor-name-display>Clinton Adams</contributor-name-display>
            <contributor-id type="github">clad</contributor-id>
        </contributor>

        <contributor id="craig.a.james">
            <contributor-name-display>Craig A. James</contributor-name-display>
            <contributor-id type="github">cjames53</contributor-id>
        </contributor>

        <contributor id="cynthia.shang">
            <contributor-name-display>Cynthia Shang</contributor-name-display>
            <contributor-id type="github">cmwshang</contributor-id>
        </contributor>

        <contributor id="dan.farrell">
            <contributor-name-display>Dan Farrell</contributor-name-display>
            <contributor-id type="github">farrellit</contributor-id>
        </contributor>

        <contributor id="david.youatt">
            <contributor-name-display>David Youatt</contributor-name-display>
            <contributor-id type="github">youattd</contributor-id>
        </contributor>

        <contributor id="devrim.gunduz">
            <contributor-name-display>Devrim G&amp;uuml;nd&amp;uuml;z</contributor-name-display>
            <contributor-id type="github">devrimgunduz</contributor-id>
        </contributor>

        <contributor id="dmitry.didovicher">
            <contributor-name-display>Dmitry Didovicher</contributor-name-display>
            <contributor-id type="github">anarazel</contributor-id>
        </contributor>

        <contributor id="douglas.j.hunley">
            <contributor-name-display>Douglas J Hunley</contributor-name-display>
            <contributor-id type="github">hunleyd</contributor-id>
        </contributor>

        <contributor id="eric.radman">
            <contributor-name-display>Eric Radman</contributor-name-display>
            <contributor-id type="github">eradman</contributor-id>
        </contributor>

        <contributor id="evan.benoit">
            <contributor-name-display>Evan Benoit</contributor-name-display>
            <contributor-id type="github">evanbenoit</contributor-id>
        </contributor>

        <contributor id="vidhya.gurumoorthi">
            <contributor-name-display>Vidhya Gurumoorthi</contributor-name-display>
            <contributor-id type="github">fpa-postgres</contributor-id>
        </contributor>

        <contributor id="greg.smith">
            <contributor-name-display>Greg Smith</contributor-name-display>
            <contributor-id type="github">gregscds</contributor-id>
        </contributor>

        <contributor id="heath.lord">
            <contributor-name-display>Heath Lord</contributor-name-display>
            <contributor-id type="github">crunchyheath</contributor-id>
        </contributor>

        <contributor id="ibrahim.edib.kokdemir">
            <contributor-name-display>Ibrahim Edib Kokdemir</contributor-name-display>
            <contributor-id type="github">Edib</contributor-id>
        </contributor>

        <contributor id="james.chanco.jr">
            <contributor-name-display>James Chanco Jr</contributor-name-display>
            <contributor-id type="github">jameschancojr</contributor-id>
        </contributor>

        <contributor id="jan.wieck">
            <contributor-name-display>Jan Wieck</contributor-name-display>
            <contributor-id type="github">wieck</contributor-id>
        </contributor>

        <contributor id="janice.parkinson">
            <contributor-name-display>Janice Parkinson</contributor-name-display>
            <contributor-id type="github">jpabt</contributor-id>
        </contributor>

        <contributor id="jason.odonnell">
            <contributor-name-display>Jason O'Donnell</contributor-name-display>
            <contributor-id type="github">Dwaligon</contributor-id>
        </contributor>

        <contributor id="javier.wilson">
            <contributor-name-display>Javier Wilson</contributor-name-display>
            <contributor-id type="github">javierwilson</contributor-id>
        </contributor>

        <contributor id="jeff.mccormick">
            <contributor-name-display>Jeff McCormick</contributor-name-display>
            <contributor-id type="github">jmccormick2001</contributor-id>
        </contributor>

        <contributor id="jens.wilke">
            <contributor-name-display>Jens Wilke</contributor-name-display>
        </contributor>

        <contributor id="jesper.st.john">
            <contributor-name-display>Jesper St John</contributor-name-display>
            <contributor-id type="github">Underhunden</contributor-id>
        </contributor>

        <contributor id="joe.ayers">
            <contributor-name-display>Joe Ayers</contributor-name-display>
        </contributor>

        <contributor id="john.harvey">
            <contributor-name-display>John Harvey</contributor-name-display>
            <contributor-id type="github">crunchyjohn</contributor-id>
        </contributor>

        <contributor id="keith.fiske">
            <contributor-name-display>Keith Fiske</contributor-name-display>
            <contributor-id type="github">keithf4</contributor-id>
        </contributor>

        <contributor id="laetitia">
            <contributor-name-display>L&amp;aelig;titia</contributor-name-display>
            <contributor-id type="github">LaetitiaLoxo</contributor-id>
        </contributor>

        <contributor id="leonardo.gg.avellar">
            <contributor-name-display>Leonardo GG Avellar</contributor-name-display>
            <contributor-id type="github">L30Bola</contributor-id>
        </contributor>

        <contributor id="magnus.hagander">
            <contributor-name-display>Magnus Hagander</contributor-name-display>
            <contributor-id type="github">mhagander</contributor-id>
        </contributor>

        <contributor id="markus.nullmeier">
            <contributor-name-display>Markus Nullmeier</contributor-name-display>
            <contributor-id type="github">mnullmei</contributor-id>
        </contributor>

        <contributor id="matt.kunkel">
            <contributor-name-display>Matt Kunkel</contributor-name-display>
            <contributor-id type="github">mtkunkel</contributor-id>
        </contributor>

        <contributor id="mibiio">
            <contributor-name-display>mibiio</contributor-name-display>
            <contributor-id type="github">mibiio</contributor-id>
        </contributor>

        <contributor id="michael.renner">
            <contributor-name-display>Michael Renner</contributor-name-display>
            <contributor-id type="github">terrorobe</contributor-id>
        </contributor>

        <contributor id="michael.vitale">
            <contributor-name-display>Michael Vitale</contributor-name-display>
            <contributor-id type="github">MichaelDBA</contributor-id>
        </contributor>

        <contributor id="mihail.shvein">
            <contributor-name-display>Mihail Shvein</contributor-name-display>
            <contributor-id type="github">M1hacka</contributor-id>
        </contributor>

        <contributor id="navid.golpayegani">
            <contributor-name-display>Navid Golpayegani</contributor-name-display>
            <contributor-id type="github">golpa</contributor-id>
        </contributor>

        <contributor id="nick.floersch">
            <contributor-name-display>Nick Floersch</contributor-name-display>
            <contributor-id type="github">seinick</contributor-id>
        </contributor>

        <contributor id="nikhilchandra.kulkarni">
            <contributor-name-display>Nikhilchandra Kulkarni</contributor-name-display>
            <contributor-id type="github">nikhilchandra-kulkarni</contributor-id>
        </contributor>

        <contributor id="nj.baliyan">
            <contributor-name-display>Nj Baliyan</contributor-name-display>
            <contributor-id type="github">nj3110</contributor-id>
        </contributor>

        <contributor id="pritam.barhate">
            <contributor-name-display>Pritam Barhate</contributor-name-display>
            <contributor-id type="github">pritammobisoft</contributor-id>
        </contributor>

        <contributor id="ronan.dunklau">
            <contributor-name-display>Ronan Dunklau</contributor-name-display>
            <contributor-id type="github">rdunklau</contributor-id>
        </contributor>

        <contributor id="ryan.lambert">
            <contributor-name-display>Ryan Lambert</contributor-name-display>
            <contributor-id type="github">rustprooflabs</contributor-id>
        </contributor>

        <contributor id="sarah.conway">
            <contributor-name-display>Sarah Conway</contributor-name-display>
            <contributor-id type="github">xenophenes</contributor-id>
        </contributor>

        <contributor id="sascha.biberhofer">
            <contributor-name-display>Sascha Biberhofer</contributor-name-display>
            <contributor-id type="github">sbiberhofer</contributor-id>
        </contributor>

        <contributor id="scott.frazer">
            <contributor-name-display>Scott Frazer</contributor-name-display>
            <contributor-id type="github">sfrazer</contributor-id>
        </contributor>

        <contributor id="sebastien.lardiere">
            <contributor-name-display>Lardi&amp;egrave;re S&amp;eacute;bastien</contributor-name-display>
            <contributor-id type="github">slardiere</contributor-id>
        </contributor>

        <contributor id="stephane.schildknecht">
            <contributor-name-display>St&amp;eacute;phane Schildknecht</contributor-name-display>
            <contributor-id type="github">saspg</contributor-id>
        </contributor>

        <contributor id="stephen.frost">
            <contributor-name-display>Stephen Frost</contributor-name-display>
            <contributor-id type="github">sfrost</contributor-id>
        </contributor>

        <contributor id="todd.vernick">
            <contributor-name-display>Todd Vernick</contributor-name-display>
            <contributor-id type="github">gintoddic</contributor-id>
        </contributor>

        <contributor id="thomas.flatley">
            <contributor-name-display>Thomas Flatley</contributor-name-display>
            <contributor-id type="github">seadba</contributor-id>
        </contributor>

        <contributor id="ucando">
            <contributor-name-display>ucando</contributor-name-display>
            <contributor-id type="github">ucando</contributor-id>
        </contributor>

        <contributor id="uspen">
            <contributor-name-display>uspen</contributor-name-display>
            <contributor-id type="github">uspen</contributor-id>
        </contributor>

        <contributor id="victor.gdalevich">
            <contributor-name-display>Victor Gdalevich</contributor-name-display>
            <contributor-id type="github">ntrvic</contributor-id>
        </contributor>

        <contributor id="viorel.tabara">
            <contributor-name-display>Viorel Tabara</contributor-name-display>
        </contributor>

        <contributor id="vitaliy.kukharik">
            <contributor-name-display>Vitaliy Kukharik</contributor-name-display>
            <contributor-id type="github">vitabaks</contributor-id>
        </contributor>

        <contributor id="vthriller">
            <contributor-name-display>vthriller</contributor-name-display>
            <contributor-id type="github">vthriller</contributor-id>
        </contributor>

        <contributor id="william.cox">
            <contributor-name-display>William Cox</contributor-name-display>
            <contributor-id type="github">mydimension</contributor-id>
        </contributor>

        <contributor id="yogesh.sharma">
            <contributor-name-display>Yogesh Sharma</contributor-name-display>
            <contributor-id type="github">sharmay</contributor-id>
        </contributor>

        <contributor id="yummyliu">
            <contributor-name-display>yummyliu</contributor-name-display>
            <contributor-id type="github">yummyliu</contributor-id>
        </contributor>
    </contributor-list>
</doc>
