Ubuntu 11.10 ("Oneiric Ocelot") was released, featuring makeovers for its Unity desktop and Ubuntu Software Center, plus a switch to the Thunderbird email client and a new backup tool called Deja Dup. On the server side, Ubuntu 11.10 adds ARM support, as well as a new "Juju" cloud management framework, and the integration of OpenStack within Ubuntu Cloud Infrastructure.
Most of the desktop and UI changes to the Ubuntu 11.10 ("Oneiric Ocelot") Linux distribution were revealed in the alpha and beta releases, the latter coming in September. However, a few new wrinkles have popped up, and there's also plenty of server news, including new cloud features and the first support for ARM-based servers (see farther below).
The ARM support has also been enhanced for desktop and "Ubuntu Core" embedded Ubuntu releases. According to Ubuntu sponsor Canonical, which formally announced the final release Oct. 10 in anticipation of the Oct. 13 release date, "Unity is now fully supported on ARM, making extremely low-power and low-cost thin clients possible for large-scale institutional deployments."