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

Orange Box Engine
Fixed an exploit that allowed files to be uploaded to the server at arbitrary locations in the file system
Fixed a server crash caused by a client packet claiming to be an HLTV client when HLTV is disabled on the server
Fixed a server crash caused by spoofing a client disconnect message
Fixed a ser... [read more]

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

Day of Defeat: Source
Fixed an engine crash

Team Fortress 2
Updated PL_Hoodoo. Changes from community mapmaker Tim Johnson:
"Added a balcony at 2-1 that I've rotated and cleaned up so it's a much better point, it attracts less sentry spam but is still holdable. 2-2 has a bit more breathing room and the one way rou... [read more]

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

Team Fortress 2
Fixed "r_rootlod" being marked as a cheat, which prevented it from being changed and caused a significant performance loss for some GPUs
Changed "The Big Hurt" Scout achievement to be "Stun 2 Medics that are ready to deploy an UberCharge."
Fixed Announcer overtime bug on KOTH servers using mp_timelimit
Due to many requests, a... [read more]

Team Fortress 2 (PC)New maps, modes and hats!
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 specific changes include:

New Content
Added King Of The Hill game mode
Added custom animations played by the losing team during the post-win state. They are moved into third person camera to enjoy them
Added lots of new hats

Additions / Changes
Added "Auto Reload" option to the multiplayer advanced options
Clip-based weapons that reload a full clip at a time can now... [read more]

Team Fortress 2 (PC)Valve considering further tweaks to popular shooter.
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 specific changes include:

Linux Dedicated Server
Improved connection logic to help servers that aren't automatically reconnecting to Steam

Engine
Fixed seeing error dialogs if the "-nocrashdialog" command line parameter is present

Team Fortress 2
Added an optional per-map particle manifest called _particles.txt, which should be located in the maps directory, so map... [read more]

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

Linux Dedicated Server
Improved connection logic to help servers that aren't automatically reconnecting to Steam, and added extra logging to track it
Added extra data gathering to help us understand and improve Linux performance

Team Fortress 2
Changed cl_flipviewmodels so it can no longer be set while connected to a server
Fixed problem wi... [read more]

Updates to Team Fortress 2, Half-Life 2: Episode 1 & 2, and Portal have been released. The updates will be applied automatically when your Steam client is restarted. The specific changes include:

Team Fortress 2, Episode 1 & 2, and Portal
Added support for the Novint Falcon

General
Added an option to the advanced multiplayer menu to select left or right handed view models
Fixed a bug where a spectator's wearable items could be seen floating around the player they were spectating
Fixed a bug ... [read more]

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

Engine
Fixed Day of Defeat: Source server crash when loading dod_jagd.

Team Fortress 2
Added a "Discard" button to the item pickup panel.
Added a backstab custom death animation to the Heavy.
Changed default for tf_arena_use_queue to 1. This was the original behavior prior to the last update.
Changed the Dead Ringer so it can be activated ... [read more]