Apple has seeded OS X Mountain Lion 10.8.4 Build 12E47 to developers for testing, after releasing a previous build just over a week ago.
The 10.8.4 update is a minor update for OS X Mountain Lion, and even contains new references to 802.11ac chipsets. 10.9 on the other hand, is rumored to contain new power features and expected to be unveiled at WWDC.
Known Issues - None
Focus Areas - Wi-Fi - Graphics Drivers - Safari
Developers can download the update from the link below...
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