Updates to Left 4 Dead 2 have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Left 4 Dead 2

• New mutation: Healthpackalypse!
  

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

• Added Steam Clan Tag support ( Set yours in Options->Multiplayer->Advanced )
  
• Added new achievement "CLAN WARFARE": Win a match of at least 10 players where the entirety of each team is composed of a single clan.
  
• All weapon fire rates now tuned to match their pre-update, tickrate 100 equivalents. (http://forums.steampowered.com/forums/showthread.php?t=1368659)
  
• Added automatic server tagging for some server convars ( "mp_startmoney", "mp_friendlyfire", "bot_quota", "sv_nostats", "sv_allowminmodels" )
  
• Fixed some issues for players who were experiencing stat corruption.
  
• Fixed several server crash exploits.
  
• Fixed server commands "sv_disablefreezecam" and "sv_nowinpanel" not working on dedicated servers.
  
• Adjusted some DX9 shaders to look more like their DX8 counterparts, e.g. flashbang effect.
  
• Community Requests:
  
  • Fixed entity I/O messages "OnPlayerPickup" and "OnPlayerUse".
    
  • Restored UTF-8 support in the console.
    
  • Added env_hudhint entity, for use in custom maps (The allplayers flag must be set for the hint to work in Counter-Strike.)
    
  • Added client convar "sv_hudhint_sound" to turn off emit sound for hud hints.
    
  • Restored the "cl_minmodels" client convar.
    
  • Added server convar "sv_allowminmodels" that allows them to prevent clients from using "cl_minmodels".
    
  • Added a button to Options->Multiplayer that allows players to reset their in-game stats.
    
    • Note: Due to the nature of stats corruption, it is not possible to automatically fix all types of stats (such as weapon statistics reflecting usage of the wrong weapon). Players who suspect their stats are incorrect and wish to start fresh may want to use the new stat reset feature
      

Updates to Left 4 Dead 2 have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Left 4 Dead 2

• Added additional protection for critical files
  
• All add-on files will be loaded when connecting to a Non-Official server regardless of game mode
  
• Only approved custom maps will be loaded when connecting to an Official server
  
• Player's can print the contents of the consistency list with "cl_print_consistency_list". If the server has sv_consistency disabled, the user will be notified when they attempt to print the list
  
• Improvement to Hammer load times
  

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

Portal

• Fixed bonus map import dialog
  

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
  

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 than their normal amount of health.
  
• Fixed old demos with different data tables thinking the SourceTV player entity was burning.
  
• TF Bot Changes
  
  • Improved performance of bot computations that are done when a point is captured, a round starts, or a checkpoint reached.
    
  • Fixed Engineer bot infinite build-destroy behavior loop regression
    
  • Fixed Medic bots losing their charge if they touch a resupply cabinet
    
  • Fixed a crash due to having multiple types of bot systems running in-game simultaneously
    
  • Fixed bot behavior issue resulting in bot pile-ups near level 3 teleporter entrances
    
  • Bots no longer consider sapped sentries a dangerous threat
    
  • Bots will not try to navigate through enemy spawn rooms (unless they have won the round)
    
  • Bot Engineers will avoid building teleporters on steep slopes which can hinder teammate movement
    
  • Added tf_bot_pyro_always_reflect cvar. Set to 1 to make Pyro bots always reflect projectiles, regardless of difficulty level.
    

Updates to Left 4 Dead 2 have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

Changes:

• New mutation: Hard Eight
  

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 some unsupported threading convars
  

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 issue related to increased maxplayer servers.
    
  • Fixed a couple Engineer building exploits.
    
• Updated the localization files.
  
• Improved the performance of the critboost particle effect.
  
• Fixed a server crash related to carrying buildings at round start.
  
• Fixed players picking up buildings before a round has started.
  
• Fixed an exploit where Engineers could create level 3 mini-sentries.
  

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 while carrying a building.
  
• Fixed seeing the changeclass label in the spectator HUD when using cl_hud_minmode.
  
• The amount of revenge crits a player can have at one time is now capped at 35.
  
• The Wrangler no longer shows the shotgun's ammo count.
  
• Engineers can no longer pick up buildings while stunned or in loser state.
  
• Fixed Engineer shotgun and piston not using team skins for the Engineer's arms.
  
• Fixed an issue where Wrangled sentrygun effects wouldn't be attached to the sentrygun.
  
• The Gunslinger 3 hit combo now only increments the combo count when hitting enemy players.
  
• Fixed a crash in the control point progress bar.
  
• Fixed a server crash in the player death code, related to building carrying.
  
• Fixing performance spikes that occur at round start, and after each point capture, when TFBots are present in the server.
  
• Achievement fixes:
  
  • The "Rio Grind" achievement limit is now correctly set to 50.
    
  • Fixed a typo in Six-String Stinger achievement name.
    
  • Fixed a bug in the "Death Metal" achievement that caused it to rapidly complete itself.
    
  • Fixed getting the Six-String Stinger achievement without playing the guitar.
    
  • Fixed sentrygun detection code in "Best Little Slaughterhouse in Texas" and "Deputized".
    
• Missed notes from yesterday's release:
  
  • New response rules and sounds added for some classes