Apple has this week released its sixth beta build of the upcoming OS X Mountain Lion 10.8.4 to developers, which has been labelled as build number 12E37.

The new build comes eight days after build 12E40. Apple has been seeding a new build to developers on a near-weekly basis since the first beta build was released at the beginning of April.

As with previous releases, Apple has asked developers to focus their testing on WiFi, Graphics Drivers and Safari.

When Apple released the second beta build of the update earlier this month, a reference to the new, as yet ungratified high-speed 802.11ac '5G' WiFi standard was spotted.

 

The first beta of OS X 10.8.4 arrived in on 1 April, two weeks after the final version of the OS X 10.8.3 update was released. Apple's OS X 10.8.3 update saw 14 beta builds seeded to developers before being released to the public, and brought Safari 6.0.3, Boot Camp improvements and audio fixes to Macs running Mountain Lion.

Apple has announced the dates of its WWDC 2013, which the company says will give developers an in-depth look at the future of the OS X, suggesting we'll get our first glimpse of OS X 10.9 during the event.

Developers can access the new OS X 10.8.4 build through the software update tool in the Mac App Store.

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