A massive change is about to happen, combat will be entirely reworked. For more info about that, take a look at the combat rework thead. Besides that alot of new armours have been introduced, everything got polished up a bit, and there is a new, jad-like challenge.
Probably missing out on a lot, but this is what I could think of. Oh yeah, and a bot-nuke has taken place, was succesfull for a couple of months ( Except against colour bots ), and a new botnuke is about to happen.