The Fedora Project (sponsored by Red Hat) has released Fedora 18 (Spherical Cow) has been released on 2013 Jan 15.
In this version, Fedora Project has introduced a New Installer which is rewritten and redesigned from the ground up. It replaces the old 13+ year old installer from previous versions of Fedora. You can learn more about it at the new installer informational page on the Fedora wiki.
for more visit http://www.fedoraproject.org
Release Note: http://fedoraproject.org/wiki/F18_release_announcement