Apple has released Mac OS X Preview 2 update which doesn’t point out any specific changes while recommending for the upgradable version. We can predict a complete sneak peak of the most important features of the Mac OS X Lion followed with the release at World Wide Developer Conference in June.
This update is recommended for all Mac OS X Lion preview 2 users. Those developers who are testing the preview can update by selecting software update from the Apple menu.
There is no information from any source about the recent changes which have been made through the update. If you figure out some changes, let us know.