After releasing the third beta of iOS 7 this morning, Apple has seeded the third Developer Preview of OS X Mavericks to developers. The third iteration of the OS X Mavericks beta comes two weeks after Apple seeded the second version to developers and focuses on performance enhancements and bug fixes. OS X Mavericks is slated for release this fall and includes new features like a tabbed Finder, full screen dual monitor capabilities, Safari improvements, and a new Maps app. Developers can receive the update via the Software Update tool in the Mac App Store.