WordPress 3.3 Beta 1 launch for testers, developers and WordPress users to find out how it works. The main thing to launch WordPress 3.3 is to find out the bugs by users and developers. It is the best blogging software it is not recommend that you run it on a current site. Simply set up a test site just to use with the new version.
WordPress.org will release 3.3 by the end of November if everything goes well. They also suggest that if you want to be a beta tester you should check out the Codex article it will teach you how to report bugs.
WordPress 3.3 Beta 1 new features:
Up-loader for media
New Improved admin bar
Simple fly out admin menus
Please Download WordPress 3.3 Beta 1 for test