# `@yarnpkg/plugin-compat`

This plugin contains various builtin patches that will be applied to packages that aren't compatible with the Plug'n'Play resolution out-of-the-box.

## Install

This plugin is included by default in Yarn.

## Compatibility Features

- Various [extensions](/configuration/yarnrc#packageExtensions) are enabled by default (full list [here](https://github.com/yarnpkg/berry/blob/master/packages/yarnpkg-extensions/sources/index.ts))
- [`fsevents`](/packages/plugin-compat/extra/fsevents): Makes fsevents aware of the virtual filesystem: [#692](https://github.com/yarnpkg/berry/pull/692)
- [`typescript`](/packages/plugin-compat/extra/typescript): Auto-merge of [#35206](https://github.com/microsoft/TypeScript/pull/35206)
- [`resolve`](/packages/plugin-compat/extra/resolve): Implements [`normalize-options.js`](https://github.com/browserify/resolve/pull/174)
