Chaos UT2 is continuing their move to Unreal Tournament 2004 and are testing the first Internal Release. You can find an extensive changelog at Chaotic Dreams.
'Again we took the time to clean up our old code base and redo many things from top to bottom. Lots of classes got moved. Some older ones got removed as they were no longer used, as well as others got renamed. So even though it may seem like we did not do 'that' much. We did a heck of a lot. Also most of the maps we had to convert do to some of the changes we made. More news on that when we have know the rest of the details. But we see the MUG more or less working, turret models, CPP as well as our own version of CTF..so new stuff as well.'