Epic Games has released the first patch for UT2004, bringing the FPS up to version 3204. This patch is completely compatible with the retail version. This patch will not overwrite your ut2004.ini and user.ini files, except to update settings as necessary. The package includes x86, amd64 and server binaries.
After installing the patch, you can find the readme at ut2004/help/ReadMePatch.int.txt which included the Changelog.
The linux changes are:
– fixed CacheRecords.ucl handling on Linux
– Various client and server crash fixes