This weekend Valve is inviting everyone to try Day of Defeat: Source for free via Steam. Visit Steampowered.com to pre-load the game and be set to play at 12:00 pm (noon) PST on Friday, when the Free Weekend begins. Join the ranks as Axis or Allies troops located in Western Europe during the height of the war in 1944.

For more information, visit the DoD: Source Free Weekend page.

News Source: Steam News

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

• Changed Steam news messages to not display during game launch or Windows startup
  
• Improved offline detection when Steam launches during Windows startup (helps with wireless connection delays)
  
• Fixed a crash which would occur when Steam had been running for a long period of time on certain computers
  
• Fixed confirmation dialogs when adding or removing the "Half-Life High Definition pack" via web page links
  
• Fixed several user interface bugs
  
• Changed games to show up in Steam as "Pre-loaded" if their content exists locally, to give users the opportunity to clean up old preloads

News Source: Steam News