Although OS X Mountain Lion 10.8 was released by Apple in July in the Mac App Store, the American company still offers support for the old OS X Lion released last year. A beta version of OS X Lion 10.7.5 is currently in development and build 11G36 was released last night for Mac app developers only. Apple does not suggest that this build would have functionality problems and recommends developers to test the performance of the graphics card and the image transfer options in Macs.
OS X Lion 10.7.5 build 11G36 is available in the portal dedicated to developers on the Apple website and could be the last beta version released before the official one.
