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People familiar with the latest beta of OS X 10.8.2 indicated it is known as build 12C35. Developers have reportedly been asked to focus on the new Facebook integration coming to the updated version of Mountain Lion.
Other areas of focus highlighted by Apple for developers are said to be Messages, Game Center, Safari and Reminders. The latest build of OS X 10.8.2 reportedly contains no known issues.
The first beta of OS X 10.8.2 was provided to select developers last Thursday. Those who participated in the beta were invited to do so by Apple via e-mail.
The biggest change in OS X 10.8.2 is expected to be Facebook integration across the entire Mountain Lion operating system. The new feature will work similar to how Twitter is currently integrated, with the ability to post pictures and other content directly to a user's Facebook account with the operating system's Share Sheets button.
The latest public release of Mountain Lion, OS X 10.8.1, also launched last Thursday. It resolved an issue that caused Migration Assistant to unexpectedly quit, improved compatibility when connecting to a Microsoft Exchange server in Mail, and addressed an issue playing audio through a Thunderbolt display.
Just two developer previews of OS X 10.8.1 were made available to developers before the software officially launched. Mountain Lion became available on the Mac App Store just over a months go, on July 25.