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One week following the first beta seed of OS X Mountain Lion 10.8.5, Apple has released OS X 10.8.5 build 12F13 to developers. The new update includes no known issues and is available for developers via the Mac Developer Center and the Mac App Store Software Update function.

Apple continues to ask developers to focus on WiFi, Graphics, Wake from Sleep, PDF viewing and Accessibility, and Mobile Device Management during their testing. Apple has also been seeding 10.8.5 beta updates to its retail staff. Apple seeded a second Developer Preview of OS X 10.9 Mavericks to developers earlier this week.

Thanks, D!