The weekly updates of the next minor update to OS X Mountain Lion continue, with the second beta of OS X 10.8.5 being distributed to developers and Apple retail staff through the Mac Developer Center and the Mac App Store for those with developer or employee accounts. The release again focuses on bug fixes rather than new features, though there is some speculation that the forthcoming release could be the last for Mountain Lion as the company focuses on OS X Mavericks (10.9), the second Developer Preview of which was sent out on Tuesday.