Updates to the Steam Client have been released. The updates will be applied automatically when your Steam client is restarted. The specific changes include:

Steam Client

• Fixed occasional hang on startup
  
• Fixed IP address sorting order in the serverbrowser
  
• Improved favorites list responsiveness when manipulating very large lists
  
• Fixed server pings being too high if you ran Steam for more than a day
  
• Fixed sometimes losing favorites when they were added in game
  
• Fixed guest pass column showing in the media/tools page incorrectly

Updates to the Half-Life 1 Engine have been released. The updates will be applied automatically when your Steam client is restarted. The specific changes include:

Half-Life 1 Engine

• Prevent steam:// urls from being triggered from the MOTD
  
• Fix for player names with really wide characters getting ellipses and being indistinguishable from one another in the scoreboard and spectator UIs

Updates to the Source Engine have been released. The updates will be applied automatically when your Steam client is restarted. The specific changes include:

Source Engine

• Replaced cl_interp with cl_interp_ratio. Server can limit it with sv_client_min_interp_ratio and sv_client_max_interp_ratio
  
• Added sv_rcon_log to allow rcon logging to be disabled
  
• Cheat protected many more cvars