Fedora 18, which carries the peculiar codename of "Spherical Cow", offers an interesting number of new features.
"The Fedora Project is incredibly delighted to announce the release of Fedora 18 ("Spherical Cow"). Heck, we'd even say that getting this release to you has been a mooving experience. Fedora is a leading-edge, free and open source operating system that continues to deliver innovative features to many users, with a new release about every six months...or so. But no bull: Spherical Cow, is of course, Fedora's best release yet. You'll go through the hoof when you hear about the Grade A Prime F18 features. You can always cownt on us to bring you the best features first."
Find out more about this Red Hat sponsored release from the F18 release notes. The latest release is available for free download as always from FedoraProject.org.