The Fedora Project on Tuesday announced Fedora 11, the latest version of its free open source operating system. Code named “Leonidas,” Fedora 11 takes another whack at virtualization, a technology market in which its sponsor, Red Hat, is working hard to carve out a niche. It also has several features that make things easy for desktop users. Together with the operating system, the Fedora Project announced the beta test of Fedora Community, a portal that will make it easier for the volunteers working on Fedora to interact.