Today Apple pushed out final update to MAC OS X Lion to developers. The new feature got some previous bugs fixed and more stability is added. This new build makes improvements to Lion Recovery and includes iCloud Beta Functionality.
The update made to MAC OS X Lion is said to be like the GM build. It got almost all issues fixed and there are no known issues in this Build. This is the final release by Apple, as it will release the update after or on its Media Event.