An update has been released for the Steam Client and will be automatically downloaded. 
General- Fixed in-game overlay sometimes not activating on first hot-key press after game launch
 
- Games can be preloaded to any available Steam Library folder
 
- Fixed downloading games in development
 
- Fixed some cases where Steam wasn't asking the user if they wanted to let the game update when re-launching after a game crash
 
- Fix "Recently Played" list generation
 
- Removed defunct Media filter from the library filter menu
 
- Added Tools to the Installed and Recently Played library lists
 
- Fixed a bug in the in-game overlay which could lead to a game crash in ShellExecute calls with unexpected parameters
 
- Changed in-game overlay to prefer first created and still in-use swapchain and avoid presenting on multiple swapchains at once
 
- Fixed memory issue and crash when voice API's were sent corrupt data, thanks to Luigi Auriemma from Revuln for the report
 
- Fix buffer overflow from malformed voice packets
 Fixed installing games with very large files from retail disc
 
Big Picture- Added new library section for browsing and managing user screenshots
 
- Decreased sensitivity of trigger buttons for fast paging in library all games view
 
- Decreased sensitivity of analog triggers for mode switches in daisywheel text input
 
- Fixed hotkeys involving ctrl/alt/shift modifies not functioning in the in-game overlay as intended
 
- Windows: Ensure that we try to forcefully take window focus back on game exit, which deals with some cases where games with launchers could lead windows to restore focus to a random non-Steam window
 
- Windows: Performance improvements for the in-game overlay in D3D9ex, D3D10, D3D10.1, and D3D11 game
 
- Fix a case where the system context menu for the Big Picture window could be activated on game exit and input would then go to it rather than Big Picture
 
- Fix the Remove Friend and Block All Communication buttons in the Profile actions section to function
 
 Fix a rare crash during login inside of Big Picture if Steam is set to start up in Big Picture mode
 
In-Home Streaming- Worked around a crash in the latest NVIDIA driver (337.88)
 
- Implemented brightness controls for games like Dark Souls II and Thief
 
- You can toggle windowed mode on the client with Alt-Enter and resize the streaming window
 
- Desktop shortcuts will stream games if they are currently available for streaming
 
- Added 2 streaming EULA dialog so you dont have to go to the remote computer to accept it after installing a game
 
- Fixed the menu bar showing on the client on Mac OS X 10.6
 
- Worked around NVIDIA driver crash when streaming games from laptops with NVIDIA GPUs 
 
- Fixed the escape key canceling fullscreen mode on Mac OS X 
 
- Fixed window size when leaving fullscreen mode on Mac OS X 
 
- Streaming uses UDP ports 27031 and 27036 and TCP ports 27036 and 27037
 
- Implemented streaming controller support for games using the Unity engine 
 
- Fixed black screen with some launchers when using the Windows 7 Basic theme
 
- Fixed "The streaming client exited unexpectedly (2)" in some cases where D3D9 and OpenGL arent available
 
- Added support for XInput based arcade sticks and wheels on Windows clients 
 
- Added support for NVIDIA hardware encoding for D3D fullscreen games on GeForce 650+ cards and the latest beta NVIDIA driver (340.43) 
 
 Enabled fast desktop capture on Optimus laptops with the latest beta NVIDIA driver
 
OSX- Fixed a crash affecting some users running OS X Mavericks
 
- Fixed crash plugging and unplugging a game controller
 
 Fixed incorrectly ellipsizing strings in labels
 
Virtual Reality- Added support for VR mode on Linux 
 
 Added support for VR mode on OSX
 
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