[Trooper]

Today Valve released a Steam client update. There is now support in the game overlay for DirectX 11 and DirectX 10.1!

Steam Client

Quote

• Added DirectX 11 and DirectX 10.1 support from the in-game overlay
• Fixed error 83 when launching certain games
• Fixed a crash in listen servers for games based on the Counter Strike: Source engine
• Fixed case where the in-game overlay could crash if you got a download complete notification and the app icon wasn't cached
• Fixed Steam aborting on some malformed paths instead of just failing to read the file in question
• Fixed in-game overlay input for games using raw input sometimes losing input registration

To install the update, click on the File menu inside of Steam and then select "Check for Steam Client Updates."