Apple Seeds OS X 10.8.3 (Build 12D50) To Developers

Apple Seeds OS X 10.8.3 (Build 12D50) To Developers

Apple has this morning seeded a new build of OS X Mountain Lion to developers. The new build carries the build number ‘12D50’ and requires that you first download and install the OS X Software Update Seed Configuration Utility, before installation can begin.


The build arrives less than a month after Apple seeded OS X Mountain Lion 10.8.3 (Build 12D44) to developers, which was originally seeded at the end of December. The latest build of the upcoming update to Mountain Lion contains “no known issues.”

The company has, however, asked developers to focus their efforts and testing on a number of areas, including: AirPlay
, AirPort, Game Center, Graphics Drivers and Safari.

Available Downloads

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OS X Software Seed Configuration Utility – (168.21 MB)