Apple has released OS X Mountain Lion 10.8.3 build 12D68, about a week after the release of OS X 10.8.3 12D65. The company asks developers to focus on AirPlay, AirPort, Game Center, graphics drivers, and Safari. OS X 10.8.3 has seemed to be stuck in developer builds for quite a while, but as the timeframe between dev releases is getting shorter and shorter, that means that there is less and less to fix. If we find anything new, we'll let you know. Developers--grab this update in the Mac App Store.