OS X Mavericks 10.9.3 Beta released for devs

Few days ago Apple seeded the first test build of OS X 10.9.3 to registered Mac developers, just over a week after releasing OS X 10.9.2. The new beta, which has a build number of 13D12, is available through the Software Update mechanism in the Mac App Store as well as through the Mac Dev Center. Apple is currently asking developers to focus on Graphics Drivers and Audio, and there is no word yet on specific fixes and changes included in the update. However, now devs have found that OS X 10.9.3 offers support that enables all 4K displays to run at a native Retina resolution.

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