Ubuntu 13.04 amd64 Server CD can be used with 64bit only. Featuring many popular open-source applications, up-to-date Unity desktop and new cloud-related features, the latest version of Canonical's Linux distribution for desktops and servers is ready for download. Ubuntu 12.10 introduces innovations that bring together desktop and cloud-based experiences, representing the next stage in the transition to a multi-device, cloud-based world. New Previews give large, clear previews of content as it appears in the Dash search results, giving users a quick way to get more information to help find what they are looking for. The new Web Apps feature makes frequently used web applications available through the desktop.