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-Strike: Source

• Fixed crash in custom maps using the trigger_camera entity.
  

Team Fortress 2

• Fixed another bug in the Steamworks internal stats reporting.
  
• Updated the localization files.
  

Updates to Serious Sam HD: The Second Encounter have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

• Enlarged the gap between the team panels in game overlay menu to make space for the center scrollbar that pops up when there are more players than it fits inside the leftmost panel.
  
• Fixed the scrollbars in game overlay menu glitching in some cases.
  
• Fixed the "Mismatched Version" error report that happened with renamed demo files.
  

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

• Added Toybox tab to spawnmenu
  
• Added protection from spoofed Admin SteamID's
  
• Toybox entities can now have materials/models/sounds downloads
  
• Dedicated Server spits Warning's instead of Msg's for Lua Errors
  
• Fixed stutter when downloading from Toybox
  
• Made Lua do extra checking to make sure arguments are of the right type
  
• Various improvements to Lua's errors
  

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

• Hero selection - the first hero that appears in the hero select screen is now the hero you were last using in quest mode
  
• Chasm spell text updated
  
• Extra hero info in inventory - when you mouse over the portrait in the inventory, a tooltip appears to show you the stats you can't normally see
  
• 1600x900 & 1024x600 resolution support added
  
• Steam button - selecting the Steam button on the main menu gives you the option to view achievements, stats, the official group, and the PQ2 steam forum (must have Steam Community In-Game enabled)
  
• Treasure Grab! minigame loot drops have increased. Gives extra loot for matching 4/5 chests, extra loot on higher difficulty
  
• Mod support added
  
• Fix for the "Royal Door" quest door - the pathfinding sent the player to the wrong door, this is now fixed
  
• Gem dragging ability - added the ability to drag gems to move them
  
• Updated directx web installer - fixes issues on windows 7, the game wouldn't install correctly with the old directx installer
  
• Fixed issues with hint arrow - the hint arrow would appear in some cases when it was turned off mid-battle
  
• Balanced the Assassin spell 'Weaken' - gave it a two turn cooldown and increased the cost from 5 Yellow to 5 Yellow and 4 Green
  
• 'Completionist' achievement counter fix - the achievement was working, but the counter displayed on the user's achievements page wasn't updating
  
• 'You're doing it wrong' achievement fixed - it was counting the molten metal and hammer of the righteous weapons when it shouldn't have
  
• 'Hold the Line' spell fixed - it wasn't correctly giving immunity to Fear
  
• Poisons of the same kind (but with varying rarity and/or race) were stacking - poisons stacking with two varieties of the same base type was never intended and was removed. eg. You can now stack Wyvern with Manticore, or Manticore with Arachna, but not Wyvern with Wyvern, or Manticore with Manticore.
  
• Updated FMOD version
  
• Item drop tables tweaked - players will see less Normal, Fine and Masterwork grade items as they get deeper into the game. They'll see more Legendary and Epic items instead
  

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:

• Dev Choice Mutation: Hard Eight
  
• Fixed a remote DLL loading exploit (MS KB2264107).
  
• Fixed a crash when disconnecting a rcon connection due to an invalid password when multiple sessions were already connected.
  

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

• Fixed audio client concommands that could lag a server.
  
• Fixed a remote DLL loading exploit (MS KB2264107).
  
• Fixed a crash when disconnecting a rcon connection due to an invalid password when multiple sessions were already connected.
  

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

Fixes:

• dragging of quest items into the inventory now works as it should
  
• letter about dog's whistle now correctly drops
  
• line wrapping in the Load game menu fixed
  
• a few typing errors corrected
  

New Features

• auto-save when leaving to the main menu or quitting the game
  
• new screen resolutions of 1600x900 and 2560x1600 added
  
• invert mouse Y-axis option added
  

Updates to Serious Sam HD: The First Encounter have been released. The updates will be applied automatically when your Steam client is restarted. The major changes include:

• Added workaround for wrong version report from ATI driver.
  
• Fixed rare case of some network messages being dropped when they could have been delivered.
  
• Added protections against spectator mode starting in singleplayer in some cases.
  
• Fixed crash on dedicated server happening when someone muted/unmuted another player.
  
• Fixed inability to join as client in some cases.
  
• Fixed "FragCombo" and "RoyalFragCombo" achievements not being achieved properly.
  

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

• Major performance improvements on legacy graphics hw.
  
• Fixed render issues, such as corrupt textures, on X1600.
  
• Fixed potential multimedia timer error.
  
• Fixed potential locking error of thread synchronization primitives.
  
• Fixed black halo on sunflowers in Water theme.
  
• Reduced number of GPU interpolators required which enable accelerated paths on legacy graphics hw.
  
• Optimized "multiple enabled lights" render path.
  
• Optimized ice shaders in Stone and White themes.
  
• Improved "enabled gate" effect.
  
• Improved HID device interaction.
  
• Improved display mode detection; skipping non-conformant modes.
  
• Fail gracefully if failing to setup OpenGL renderer.
  

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

• Fixed crash on startup for some systems.