Updates to Counter-Strike: Source and the Source Engine, along with some improvements to SourceTV have been released. The updates will be applied automatically when your Steam client is restarted. The specific changes include:
Counter-Strike: Source:
Added beta for Counter-Strike: Source Dynamic Weapon Pricing
Source Engine:
Exclude .lua files from being downloaded by clients
Exclude the addons/, gamemods/ and lua/ from having files inside of them downloaded to clients (Garry's MOD support)
Optimization for dedicated server and SourceTV relays
SourceTV:
Enabled tv_deltacache by default and made size adjustable
Removed original game server IP address from spectator "status" command output