Updates to Team Fortress 2, 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 (TF2, DoD:S, HL2:DM)

• Performance improvements
  

• Added the Fall 2012 crate key to the Mann Co. store
  
• Fixed The Escape Plan not using the same taunt as The Equalizer
  
• Community mapping
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• Parentname to the attributes for func_flagdetectionzone