April 27, 2012 - TF2 Team

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)

Fixed a problem that allowed malicious clients to disable the "ping" and "status" commands for other connected clients