Apple has seeded yet another OS X 10.8.3 beta in the Mac Dev Center. This specific build has no known issues, and Apple asks third-party developers to focus on testing a few more areas of the OS.
The first beta seed of 10.8.3 was released back in November, and Apple has updated the beta software no less than 10 times in 3 months. Still no official word on when 10.8.3 will be available to the public, but we’ll keep you posted.
Source: Apple