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Apple today seeded the first beta of OS X 10.10.4 to developers, just over a week after releasing OS X 10.10.3 with the Photos for OS X app to the public.



From MacRumors:
The new beta can be downloaded through the Mac Developer Center. It is not clear what's new in the beta, but it may include new features like OS X 10.10.3, or it may be a smaller update focused on bug fixes like OS X 10.10.1 and OS X 10.10.2, both of which introduced several fixes to improve performance.
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