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. The major changes include:
Source Engine Changes (CS:S, DoD:S, TF2, HL2:DM)

• Fixed the skybox on 3rd party maps when using certain sky materials
• In Hammer, while using the Vertex Tool, pressing CTRL+B will snap selected vertices to the grid
• Allow about:blank in the MOTD
• Marked mat_texture_list as a cheat to prevent client exploits
• Removed the sv_voicecodec convar because it isn’t necessary anymore and was being used as an exploit
• Updated the con_logfile convar to checking for invalid filenames
• Updated the network resource download path to check for invalid filenames
• Updated the plugin_load command
  • Servers can only load plugins if they are not running a map
  • Clients can only load plugins if they are not connected to a server

• Fixed a bug that would cause the Sentry’s health to look overhealed when it wasn’t
• Fixed an exploit with the Red-Tape Recorder and Sentry where the Sentry could build up a large amount of health
• Fixed a bug where the Spy could not place a sapper without switching weapons first
• Fixed the Engineer being able to purchase the Disposable Sentry Gun upgrade in Mann vs. Machine, build a disposable Sentry, and then refund the upgrade without the Sentry being destroyed
• Improved client-side critical attack prediction for rapid-fire weapons (i.e. Flamethrower, Minigun)
• Updated the equip_region for the Pyromancer's Mask
• Fixed the equip_region for tournament medals conflicting with other items
• Added the LBTF2 Season 9 tournament medals
• Updated the localization files