Shortly after releasing the first OS X 10.8.5 beta to developers, Apple has now begun seeding OS X Mountain Lion 10.8.5 beta to developers. The update bears a build number of 12F13, and comes exactly one week following the initial beta.
Apple is continuing to ask developers to focus their attention on Wi-Fi, Graphics, Wake from Sleep, and PDF viewing and Accessibility. The update weighs in at 223.09MB for the traditional update, and 849.85MB for the combo update, and is available through the software update tool in the Mac App Store for those who tested previous Mountain Lion betas, as well as for direct download from Apple’s Mac Developer Center.
Glad they’re putting some work into Wi-Fi!