Updates to Team Fortress 2, Counter-Strike: Source, 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, CS:S)
Fixed a problem that allowed spoofed IP addresses to make connections to the game server

Team Fortress 2
Teddy Roosebelt can now get assists in Pyrovision
Fixed Pyrovision sometimes activating in killcams for more than just weapons and cosmetics
Fixed exploit where the Scorch Shot could fire its short range kill pellet at the very beginning of the taunt
Fixed blood getting sprayed on the world in some cases in Low Violence and Pyrovision
Fixed decapitations creating head gibs in Low Violence and Pyrovision
Fixed Hitman’s Heatmaker headshot not properly getting counted on the scoreboard
Fixed tracers being fired for other weapons (SMGs) while in focus
Fixed Sydney Sleeper’s bonus not properly protecting against Decapitating Headshots
Added team color to rainbow-showered players in Pyrovision
Updated localization files

Counter-Strike: Source
Added ConVars sv_rcon_maxpacketsize and sv_rcon_maxpacketbans to allow server admins to control the maximum RCON packet size and whether or not users get banned for exceeding that limit. The defaults reflect the existing behavior.
Fixed not being able to import custom spray images on Macs
Fixed Macs cancelling http map downloads that take longer than 30 seconds
Updated the HTML renderer for displaying server MOTD