Fedora 11 has been released, it has faster performance and new security, virtualization, desktop and server features
on the faster side of things, Fedora 11 aims to have a 20 second boot time, which might rival Ubuntu Linux's 25 second boot time in its recent Jaunty release. Fedora 11 also includes the new Ext4 file system which offers better performance and the ability to handle larger file sizes. New desktop features for device identification and management are also a key part of the Fedora 11 release.
here how to upgrade to fedora 11 from fedora 10