Here is a preliminary list of things being addressed for the next patch:

Changes from 2186 are listed below:

GamePlay:

• Ambient weapon sounds (like minigun) aren't affected by level ambient sound volume changes.
• fixed translocator trail effect sometimes not working at start of game
• fixed blue translocator trail - enabled weather effects on DE bonus pack maps

Spectating:

• Added setspectatespeed exec function, which allows you to change the speed at which spectator moves on the fly. Default speed is 600.
• improved spectating switching between viewed players
• switching between viewed players doesn't lose behindview setting
• added player names and beacons to spectator view. Can be hidden by adding the line bHideSpectatorBeacons=true to the [Engine.PlayerController] section of your UT2003.ini. - don't show "now viewing" at resolutions < 640x480

Mod support:

• Fixed AddIni command for updating ini files by patches and umods.
• fixed a problem with ReviewJumpSpots on some levels.

Networking/Servers:

• fixed server hacking vulnerabilities
• stats work for servers with bots (bots not included in stats)
• fixed: tournament mode can be configured from ut2003.ini
• removed log spam when players join using model not on server
• fixed bots balancing servers

Demo Recording:

• fixed client-side demo playback speed problem
• fixed ability to fire while viewing client-side demos
• fixed ping on scoreboard of client-side demos

Menus/Interface:

• fixed problem with changing weapon bindings key for shock rifle and bio rifle from menus
• added icons to server browser, showing if server is passworded, have stats support, is latest version, is a listen server, are running any mutators, or are running instagib.

Other:

• Possible fix for longer loading times
• Karma Physics: Make SSE do the same thing on AMD and Intel processors.
• Fix bug with sphere-convex contact generation (eg. driving on blocking volumes)