After Apple already the build version 12D44 released a few weeks ago, now the fifth development version has been released from the desktop operating system. From now registered developers to download the new build version of OS X 10.8.3 12D50 in the Apple Developer Center or directly from the “OS X Software Update Seed configuration utility” to perform the update.
Apple has also added in this beta version, unfortunately no new features, and also called known bugs. Once again, the developers should focus their testing on AirPlay, AirPort, Game Center, the graphics drivers, and Safari. There is therefore nothing changes compared to the previous version and so far there are no known innovations. The short sequence of the beta versions now suggest then that soon the final version of OS X 10.8.3 will reach the public. It could well be that Apple will release later this month full results.