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]

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:

Engine
Increased the resilience of client/server data table mismatches when playing back demos. This will make most old demo files playable again, but with potential visual side effects

Team Fortress 2
Updated CP_Coldfront
Added map to the default mapcycle and motd files.
Fixed a server crash 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 an exploit that allowed Engineers to build level 2/3 mini sentries.
Fixed a bug that allowed sapped buildings to be picked up by the Engineer
Fixed a bug where Wrangled level 3 sentryguns would still fire rockets when they were out of ammo.
Fixed a bug where players would go into reference poses when switching classes whil... [read more]

Team Fortress 2 (PC)More maps and achievements for your hungry trigger finger.
Get the full article at ign.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
Fixed missing class descriptions on the class menu blackboard.
Fixed a server crash related to carrying buildings.
Fixed a HUD element issue in DX8.
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:

Engine
Fixed client crash related flashlight usage.
Fixed several issues related to alt-tabbing (invisible players, etc).

Team Fortress 2
Added The Frontier Justice.
Added The Wrangler.
Added The Gunslinger.
Added The Southern Hospitality.
Added 35 Engineer achievements.
Engineers can now picku... [read more]