I didn’t want to upgrade all of my WordPress 2.2.2 installs by uploading the tons of files to each install, so I used the WordPress Trac to get a list of changed files and stick them in their own folder.
Since I was doing so, I figured I may as well share it with you.
Please note that this is entirely unofficial and unsupported. Backup your database, etc., etc. That said, it should work fine.