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)

• Disabled Java for the in-game web browser

Team Fortress 2

• Added support for running VR mode on the Oculus Rift
• Fixed a server crash related to game stats
• Fixed custom paint not showing in the tool tip when you mouse-over an item in your backpack
• Fixed the Spy not holding sappers correctly in third person
• Fixed a bug where sentries would not rotate to face their target under some circumstances
• Fixed a scoreboard bug where domination count was reduced by 2 when a dominated player left the server
• Fixed the Fists of Steel not reducing damage from ranged weapons that use energy rings
• Fixed the death notice icon for the Eureka Effect
• Fixed the Neon Annihilator sometimes floating in the world after death
• Fixes for strange parts:
  • The Big Earner can no longer accept Long-Distance Kills strange parts
  • The Festive Grenade Launcher can now accept Critical Kills strange parts
  • The Neon Annihilator can now accept Sappers Destroyed strange parts
• Removed some description text from the Manmelter that incorrectly stated its projectiles could not be deflected
• Updated the Blind Justice so it can be equipped with other misc-slot items on the Demoman's face
• Updated the backpack image for the Upgrade to Premium Gift item
• Updated Mann Vs. Machine
  • Fixed the boss health bar sometimes disappearing
  • Fixed the uber Medics in Wave 4 of the Broken Parts mission charging at the incorrect rate
• Updated the localization files