According to the offical relese of an update to steam the following changed were include in the update:
# Added shopping cart, recommendations & purchasing directly on the web
# Added backend support for Left 4 Dead matchmaking
# Added backend support for Steam Cloud
# Updated localization for various languages
# Fixed Steam re-applying command line parameters (like -install) across 'change user' or 'change language' restarts
# Fixed Steam refreshing the games list, refreshing the server browser if open, and reloading server brower filter settings
# Fixed the friends list placeholder for large clans disappearing when "view online friends only" was turned on
# Fixed games list not always refreshing after receiving license updates
# Fixed embedded IE control not scrolling or responding to key presses correctly
# Improved IE control perf

nice!