During the last night the company Apple Lossless Audio CODEC (ALAC), has launched OS X Mountain Lion 10.8.3 beta build 12D58 for application developers for OS X. This new beta version of OS X comes just a week away from the previous build, a sign that Apple is preparing to release publicly OS X Mountain Lion 10.8.3. Apple says it has made important changes to the way Wi-Fi networks work and is still asking developers to focus their tests on the following areas: AirPlay, AirPort, Game Center, Graphics Drivers and Safari.
OS X Mountain Lion 10.8.3 beta build 12D58 can be downloaded from the Dev Center.
