Ubuntu 11.04, code-named Natty Narwhal, is the latest version of the popular Linux distribution. Released on April 28, 2011, Natty Narwhal is the first Ubuntu release to ship with the Unity desktop interface, replacing the GNOME 2 desktop. This release also marks the end of a separate Ubuntu Netbook Edition (UNE). So if you are running Ubuntu 10.10 Netboot Edition, you will, like every other Ubuntu user, be using Ubuntu 11.04 Desktop.