Updates to Team Fortress 2, Counter-Strike: Source, Day of Defeat: Source and Half-Life 2: Deathmatch 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, HL2:DM)
Improved engine handling of server queries
Get the full article at store.steampowered.com

Updates to Team Fortress 2, Counter-Strike: Source, Day of Defeat: Source and Half-Life 2: Deathmatch 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, HL2:DM)
Fixed the dedicated server not running on machines using Win2k

Team Fortress 2
Added the Monday Night Combat gear
Added Crit-a-Cola to the weapon drop list
Added missing chalkboard/serverbrowser materials for 5Gorge
Fixed... [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
Made weapon accuracy changes in response to community feedback.
Fixed firing of "stale" burst mode bullets on glock and famas.
Re-enabled the ability for max grenades to be set from server convars
Fixed code to allow observing other players when mp_fadetoblack is enabled and mp_forcecamera is something ot... [read more]

Updates to Team Fortress 2, Counter-Strike: Source, Day of Defeat: Source and Half-Life 2: Deathmatch 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, HL2:DM)
Added the "Server can execute" flag to the “r_cleardecals” command.
Fixed a problem where the microphone transmit volume sometimes had no associated control and was disabled in the Audio options dialog.
Fixed a c... [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:
Fixed a team-change crash
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:

Weapon fixes
All weapons now have a new accuracy model which fixes many bugs and provides more intuitive weapon behavior.
Fixed a bug that caused the glock to fire burst rounds on three consecutive tick frames. It now fires burst rounds with a 0.05 cycle time.
Fixed a bug that cause the famas to fire burst rounds on uneven interval... [read more]

Updates to Team Fortress 2, Counter-Strike: Source, Day of Defeat: Source and Half-Life 2: Deathmatch 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, HL2:DM)
Fixed an engine crash caused by too many precached models in some community maps.
Day of Defeat: Source
Fixed an exploit where clients could prevent weapons from recoiling properly.
Team Fortress 2
Added several crafting r... [read more]

Updates to Team Fortress 2, Counter-Strike: Source, Day of Defeat: Source and Half-Life 2: Deathmatch 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, HL2:DM)
Improved sv_pure:
Materials / Models / Sounds / Animations are more comprehensively protected.
Switched from CRC to MD5 hashes for stronger per-file validation.
Fixed some issues between custom files and server whitelists ... [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:

Source engine changes
Made another pass on De_Inferno bug fixes
Get the full article at store.steampowered.com

Updates to Team Fortress 2, Counter-Strike: Source, Day of Defeat: Source and Half-Life 2: Deathmatch 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, HL2:DM)
[Windows] Added support for raw mouse input. Raw input reads directly from the mouse, bypassing Windows control panel mouse settings. This addresses issues with high DPI mice, and provides for a more reliable controller ex... [read more]