Steam News has details on a new patch that's automatically available to update the Steam client. The change notes follow.
- Fixed an issue on Windows 2000 requiring the SP4 update rollup 1 package to be installed for Steam to run
- Fixed in-game overlay generating spurious D3D11 debug runtime warnings about CSSetUnorderedAccessViews when running on downlevel hardware
- Fix regression causing a crash on exit in the in-game overlay
- Small startup performance optimization to not initialize settings dialog data until needed
- Fix the you have been logged in elsewhere dialog to not leave Steam in a broken state on Cancel
- Support for a forthcoming news URL format change
- Fixed Retail not prompting for a CD key when creating a new account
- Fixed VGUI crashing when the number of panels was very large (ie, for users with huge friends/clan membership lists)
- Decreased number of VGUI panels active at once for friends list
- Decreased the time it takes Steam to launch some games
- Fixed memory leak when resizing in-game overlay web browser
- Fixed potential failure or client hang when failing talking to content server directory servers
- Fixed overlapping text for pending group invites in the friends list invites section
- Fixed error message “You don't currently have any games ready to backup..” when restoring a previous game backup
- Fixed Cloud changing last modified times on clouded files.
- Fixed the Cloud sync transfer rate display in list view
- Steamworks - Fixed case where building an installer could randomly fail due to an error in the Microsoft crypto library
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