The Fedora 21 beta release has arrived, with a preview of the latest free and open source technology under development. The beta release contains all the exciting features of Fedora 21’s products in a form that anyone can help test. The final release of Fedora 21 is expected in December 2014. Since it’s a beta release, some problems may still be lurking. A list of problems that we already know about can be found at the Common F21 bugs page, found at http://fedoraproject.