The Cube 2 Sauerbraten team have just released their latest version, dubbed "Justice Edition". eihrul has this to say on the Cube Forums:
Cubeengine.com 30 new maps, Inky and Captain Cannon player models, hold and efficiency game modes, vslots for editing texture properties in-game, alpha material for making transparent geometry, multi-threaded calclight, radar mini-map, and more stuff...
See changelog for more info:
So, what are you waiting around here reading this for? Go download it already!