The latest version of ChallengeQuake3, the recommended open-source client for Q3 CPMA, has been released today! Version 1.46 comes with a lot of rewritten code especially in the input department, as well as changes to the sound system. Several cvars have been renamed, so you might want to have a look at the full changelog for details.

Unfortunately is currently down, but you can still grab the files here at ESReality.

CNQ3 1.46 (Windows)
CNQ3 1.46 (Linux)
CNQ3 1.46 (source)

source: IRC / thread by brut on the forums