# XOM Down the Road

Elliotte Rusty Harold
ERH
2002-2004, 2018 Elliotte Rusty Harold

Going forward, there are some features I'd like to explore for XOM, post-1.0. In many cases, I'm not sure either how to implement or how to design them (or both). Otherwise, they just don't seem like core functionality. But here's some stuff you may (or may not) see in the future:

- Vector functions that operate on every node in a list.

- xml:id support

- Catalog support

- Document subset canonicalization

- XML digital signatures

- XML encryption