Updates to Counter-Strike: Source and Earth 2160 have been released. The updates will be applied automatically when your Steam client is restarted. The specific changes include:
Counter-Strike: Source
Added HDR lighting to de_dust
Resized some crates in de_dust to fix players being able to peek over them
Added GSG9 and Arctic player models
Improved lag compensation
Unified client and server player anims
Bot navigation files on disk are preferred over nav files embedded in bsps