In the wake of iOS 7 beta 2, Apple has also released the Developer Preview 2 of OS X 10.9 Mavericks, the second beta version of the upcoming operating system for Mac. Always reserved for developers, this new version number stamped 13A497d is only downloadable through the Mac App Store for the Apple developers program members.
This second version of OS X 10.9 release fixes many bugs and modifies some interface elements such as Safari and iCloud Keychain and the sharing buttons. Apple has fixed most problems with the migration wizard who now works correctly. Finally, this new iteration of Apple's system seems more stable and faster than the first beta.
