Apple releases OS X Mavericks Developer Preview 4

Apple on Monday posted a new build of OS X Mavericks to the Mac App Store, accessible to registered Mac developers who are currently using Mavericks on a test machine. No details were posted - all Apple indicated was that the update is recommended for all users running OS X Mavericks Developer Preview 3.

With the Mac Dev Center down in the wake of last week's security intrusion, the Software Update system preference appears to be the only way to get the new release.

OS X Mavericks was introduced at Apple's Worldwide Developer Conference (WWDC) in June. The new release of OS X, coming this fall, introduces key new features like Finder Tabs, Maps and iBooks, iCloud Keychain, improved multiple display support and more.

Are you looking forward to Mavericks' release this fall? What features excite you the most? Tell me in the comments.