Apple has just seeded the fourth Developer Preview of OS X Mavericks, the next major update for OS X to developers.
It comes as a surprise as we were not expecting it to be seeded today as Apple Dev Center is still down due to the security breach.
Apple had seeded the third Developer Preview couple of weeks back.
OS X Mavericks is expected to be released later this fall. It includes major new features such as Finder tabs, document tags, better multiple display support, improvements to Safari, new Maps app, new iBooks app and lots more.
You can download the update via Software Update in the Mac App Store.
If you’re a developer, let us know how it goes and if you’ve found anything interesting.