Apple today seeded build 12F33 of OS X 10.8.5 to developers, marking the eighth beta iteration of 10.8.5. The release comes exactly one week after the previous OS X 10.8.5 beta, build 12F30.
As with previous betas, the update contains no known issues and can be downloaded via Apple’s Developer page or through the software update tool of the Mac App Store.
Apple’s OS X 10.8.5 beta is being tested alongside the next version of the operating system, OS X Mavericks. Apple has thus far seeded five developer previews of Mavericks and plans to offer the new operating system to the public in the fall.