An update to Counter-Strike: Source has been released. The update will be applied automatically when you restart Counter-Strike: Source. The major changes include:

• Fixed a client crash related to dynamic model loading
  
• Fixed dedicated server not receiving restart requests when updates are released
  
• Fixed IP bans not applying to RCON access
  
• Fixed server crash exploit related to audio buffer overruns
  
• Fixed server crash caused by using changelevel2
  
• Updated console logging system to minimize opening and closing of files, greatly improving performance under certain conditions
  
• Additional improvements for client/server stability
  
• Fixed a problem that allowed malicious clients to disable the "ping" and "status" commands for other connected clients
  
• Fatal engine errors are now written to the server log file
  
• Added sv_lowedict_threshold and sv_lowedict_action which allow the engine to take action before running out of free edicts
  • Possible values for sv_lowedict_action are: 0 - no action, 1 - warn to log file, 2 - attempt to restart the game, if applicable, 3 - restart the map, 4 - go to the next map in the map cycle
• Added changelevel_next server command which changes to the next map in the map cycle
  
• Added mp_restartgame_immediate ConVar which has the same effect as mp_restartgame without a delay