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 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]

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

Engine (CS:S, DoD:S, TF2)
Fixed a server crash caused by spamming the server with invalid rcon passwords

Team Fortress 2
Fixed a bug in the Steamworks internal stats reporting
Get the full article at store.steampowered.com

Updates to Counter-Strike: Source and Team Fortress 2 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)
Fixed a case where servers would lock-up while writing .dmp files

Counter-Strike: Source
Fixed some minor smoke grenade bugs

Team Fortress 2
Fixed a bug in the Steamworks internal stats reporting
Get the full article at store.steampowered.com

Updates to Counter-Strike: Source, Team Fortress 2 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)
Fixed a crash on startup with some video drivers
Fixed a bug where the speaker config would be lost on Windows Vista / 7
Fixed a case where alt-tab would stop rendering models
Made the ‘X’ that closes the achievements screen visible by default i... [read more]

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

Team Fortress 2
Fixed bug with holiday date computation that turned on Birthday Mode a few days too soon
Get the full article at store.steampowered.com

Updates to Counter-Strike: Source, Team Fortress 2 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)
The mat_hdr_level, r_rootlod, and r_waterforceexpensive settings are now saved in the user’s config file.
Fixed clients being able to connect to servers with spoofed SteamIDs.
Fixed a bug where some video configurations could get reset by restarting ... [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:

Server Browser
Fixed the server browser not saving filter settings properly

Team Fortress 2
Fixed a speed exploit related to benchmarks
Fixed Parasite hat not being posed correctly on class loadout panels
Fixed a level change crash
Get the full article at store.steampowered.com

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

Team Fortress 2
Added a Parasite hat to celebrate the release of Alien Swarm (http://www.alienswarm.com/)
Fixed a client crash when opening the backpack while running in a language other than English.
Fixed not being able to pick-up buildings in Arena mode.
Fixed an exploit that allowed team kills with Wrangled sentries.
Fixed a bug where teleporters could be given more... [read more]

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

Engine
Tuned thread initialization to improve performance on CPUs with more than four cores

Counter-Strike: Source
Fixed leftover shadows when ragdoll physics are disabled
Added stats gathering to track client and server performance
Added instrumentation to help debug network issues
Disabled so... [read more]