Eric popped into the STEAM forums with word of yet another new update for all you CS 1.6 beta testers out there. This update aims to improve stability and doesn't contain any changes to the game itself. Here's a taste of what he said in the post:
We've released a new version of the desktop components of Steam to the beta. If you restart Steam, you will automatically receive this update.
This update is mostly targeted at improving the stability of the Steam Authentication server. There are no changes to any of the games with this release.