Updates to Counter-Strike: Source have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Counter-Strike: Source
Fixed performance issues and memory leaks related to scoreboard display.
Fixed long-standing bug in which a player would see another player in a grenade-throwing animation when they no longer had a grenade as their active weapon.
Fixed animation problem (“crab walk”) caused by aborting bomb plant by using... [read more]

Updates to Counter-Strike: Source Beta have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Counter-Strike: Source Beta
Fixed performance issues and memory leaks related to scoreboard display.
Fixed long-standing bug in which a player would see another player in a grenade-throwing animation when they no longer had a grenade as their active weapon.
Fixed animation problem (“crab walk”) caused by aborting bomb plan... [read more]

Updates to Counter-Strike: Source have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Counter-Strike: Source
Fixed incorrect distance on flashbang effect
Reverted changes to de_inferno and de_nuke
Get the full article at store.steampowered.com

Updates to Team Fortress 2 and Counter-Strike: Source have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Shared Changes (CS:S, DoD:S, TF2, HL2:DM)
ServerBrowser now sorts by ping by default once again.
Fixed Mac crash on launch when running Mac OSX 10.5.8.
Fixed spectator bug where spectating a Sniper looking through scope didn't zoom fov

Team Fortress 2
General Fixes
Fixed an issue that caused some old demos to crash.
... [read more]

Updates to Team Fortress 2, Counter-Strike: Source and Day of Defeat: Source have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Source Engine Changes (CS:S, DoD:S, TF2)
Optimizations to multi-core rendering
Removed -heapsize command line argument. Some detail: This command made sense in Half-Life 1’s memory manager. The current engine manages memory in a way that doesn’t need it specified. Under some circumstan... [read more]

Updates to Counter-Strike: Source Beta have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Counter-Strike: Source Beta
Optimizations to multi-core rendering
Get the full article at store.steampowered.com

Updates to Counter-Strike: Source Beta have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Counter-Strike: Source Beta
Fixed a bug where the player crouching/standing animations were delayed until after (from the player's local viewpoint).
Changed the way that scope zooming works so that it is no longer affected by client-server latency, and zooming begins immediately for the local player. This fixes an issue that would g... [read more]

Updates to Team Fortress 2, Counter-Strike: Source and Day of Defeat: Source have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Source Engine Changes (CS:S, DoD:S, TF2)
Disabled signature checking to determine if it's the source of some reported launch issues
Get the full article at store.steampowered.com

Updates to Counter-Strike: Source have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Counter-Strike: Source
Fixed a crash that could occur if a player disconnected shortly after attacking a bot
Get the full article at store.steampowered.com

Updates to Team Fortress 2, Counter-Strike: Source and Day of Defeat: Source have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Source Engine Changes (CS:S, DoD:S, TF2)
Disabled clients loading server plug-ins unless the plug-ins are signed by Steam or the client is running in insecure mode.
Added a checkbox to the Options->Audio dialog to control muting the audio when the game window is in the background.

Counter-Strik... [read more]