OS X Mountain Lion 10.8.5 beta build 12F20 is available for developers, fixes some MacBook Air issues

  OS X Mountain Lion 10.8.5 beta build 12F20 it was released last night for app developers for the platform OS X. The new build of OS X Mountain Lion 10.8.5 does not have any functional problem specified by Apple, however it seems to solve a bug that causes problems when using Photoshop on the new MacBook Airs. Apple asks developers to check WiFi connectivity, graphics card drivers, the Wake from Sleep system, the ability to view PDF documents and the Mobile Device Management system.

  The new build of OS X Mountain Lion 10.8.5 is available either as an update through the Mac App Store, or in the center dedicated to developers on the Apple website.