Another new version of the
CarBall modification for Unreal Tournament 2004 is now available, updating
the automotive conversion to version 1.8. The new version adds a new map along
with various tweaks and bug-fixes.
From what I've heard the UT2k4 3204 patch doesn't cause incompatibilities between client and server, if you don't install the patch. However you may run into bugs...the most common being the ragdoll deaths in Mods.