Canonical today announced that Ubuntu Server 13.04 is available for download, featuring high-availability (HA) for OpenStack. Ubuntu Server 13.04 is the only distribution of OpenStack that makes high-availability (HA) a standard feature, underlining its position as the easiest and fastest way to deploy an OpenStack cloud for production purposes. Enterprises on 12.04 LTS can upgrade to the latest OpenStack version, ???Grizzly,??? from the Ubuntu Cloud Archive.