With a lot of new features and new skins:
- Added Guest Passes functionality - allows owners of certain Steam games to let their friends play games for free, for a limited time trial
- Changed Steam client auto-update mechanism to first acquire updates in the background and then ask user whether to restart & apply
- Added Favorites area and collapsable status categories to 'My Games' list
- Added 5 new colored skins (Default, Ice, Sand, Obsidian, and Grey), selectable in "Settings"
- Added 'next' button to Steam news window, allowing multiple messages to be viewed in a single session
- Fixed client attempting to update some games which user does not own; was occuring when user had played game during a Free Weekend
- Fixed games purchased via PayPal not working in offline mode
Looking all the new stuff that the steam plataform got, and the cool skins; seems for me what steam needed, a new look and a big update.8)