Apple seeded the official update to the new operating system OS X Mountain Lion 10.8.1 build 12B13 and you can download to test it if you have Apple developer account. Preparing to release OS X 10.8.1 will be the first update for Apple Mac, after it has been released in Mac App Store in July this year. OS X Mountain Lion - a new major release of OS X and it is one of the most advanced OS in the world. Officially announced at the annual conference WWDC 2012 desktop operating system for Mac is the most important update, which Apple has continued convergence of OS X and iOS, begun in Lion. According to official statistics, the new OS X for the first four days after the release downloaded more than 3 million times. Build number of OS X Mountain Lion 10.8.1 is 12B13. In the first update Apple asks developers to focus on addressing the key mistakes that have been found in the original version of the Mountain Lion, including the work of the Exchange, PAC Proxies browser, Safari 6.0 feature, USB-connections and stability of the audio broadcast through the Thunderbolt. Remember, the owners of the Mac, which switched to a new OS after its release are faced with several challenges, from how to load distribution, ending a sudden shutdown of Safari 6 when it starts up and looped reboot your computer after the update. Some users of the MacBook Pro and MacBook Air running Mountain Lion complain of accelerated discharge battery of the laptop. To download OS X Mountain Lion 10.8.1 you must sigh up the developer account of Mac Developer Program. Then you can get OS X Mountain Lion 10.8.1 at the official developer website. Also there is news that you can download this beta version looking it through torrent websites. Apparently it was launched to fix problems with official version and we can expect for update to the public soon. Update: Now you can download latest beta of OS X 10.8.1 build 12B17