From the UT2004 Advanced Admin mailing list:

Date: Wednesday, November 23, 2005 5:36 PM -0500
From: Steve Polge <Steve.Polge@epicgames.com>
To: ut2004servers@udn.epicgames.com, ut2004mods@udn.epicgames.com
Subject: [ut2004servers] Beta patch 3369

This patch is currently available for windows clients and servers.

Please mirror it. This patch is not intended for public distribution,
since it is a beta. What this means is - feel free to distribute it
informally to anyone that will help test it, but please don't post it on
public web sites. This patch is completely compatible with the retail
version and previous patches - servers and clients of any flavor can
connect with each other. This patch will not overwrite your ut2004.ini
and user.ini files, except to update settings as necessary.

This patch should be installed *after* installing the Epic ECE Bonus
Pack, as it updates some of the game code included with the bonus pack.

The patch change list is included in the patch. After installing the
patch, you can find it at ut2004\help\readmepatch.int.txt. Here are the
changes from 3355 to 3369:

Thanks to John Barrett for a number of fixes.

General Gameplay:
- Fixed DriverLeft() not be called when driver dies in vehicle without
vehicle being destroyed. This fixes the vehicle not resetting, and
fixes effects like the engine sound not being turned off.
- Fixed some vehicle weapon effects staying around when bots stopped
firing them.
- Fixed spider mine layer incorrectly reducing mine count when a fired
spider mine immediately explodes.
- Fixed manta and raptor spinning sometimes when player enters
- SPMA camera explodes if it hits water.
- Don't allow SPMA camera view to go outside world.
- Invasion HUD radar uses the viewed pawn's rotation rather than the
spectator's rotation.
- Fixed low gravity not working properly in second and successive rounds
of onslaught.
- Moved announcements for assault energycore to ASOBJ_EnergyCore_Spawn,
and made them editable by level designers.
- Fixed spawning multiple energycores in Assault.
- Can now throw linkgun with 1 ammo left.
- Fixed exploit where shieldgun could be used to protect against lava or
slime volume damage.
- Fixed CTF Flags not returning exploit
- Fixed stats tracking when a player switches between a spectator and
active player (or vice-versa)

Networking:
- Various networking serialization optimizations.
- Fixed issues where players would not properly be sent to the
Spectating state on clients.
- Fix for eyeheight getting screwed up on client
- Server optimization - players don't do line of sight checks with each
other
- Don't replicate pawn.ViewPitch to netowner
- Fixed CTF flag not properly attaching to vehicles on net clients.
- Made CD key hashes sent by clients more secure.
- Fixed various exploits.
- Merged Michiel Hendrick's HTTP redirect code improvements.
- Merged Fix for Map Vote Bug that cut off some chat text
- Merged Fix for Map Vote Bug that caused the window to open twice
- Prevent crash exploit (which was fixed) from being propagated to
unpatched clients.

Engine:
- Return rather than asserting in UCanvas::WrappedPrint() if no valid
font.
- Fixed -Mod= to support proper exporting of headers
- Convert '|' to 'I' in player names.
- Fixed cut and paste error in MidGamePanel.uc that could cause crashes
on level changes. (thanks Wormbo)
- Fix and optimization for projector rendering.
- Various changes to support 64 bit version.
- Scripted texture changes so they don't render upside down on
OpenGLDrv.
- Fixed weather effects on OpenGLDrv.
- Fix for dynamic projectors not working with OpenGL

The patch is distributed to server admins so check with your server admin (who should be on this mailing list) for availability. Note that clients don't need to update to be compatible with an updated server.