The latest edition of the Ubuntu Linux operating system has been released.

Canonical, which distributes the open-source operating system, said the new versions of both the desktop and server clients would add major features.

For desktop users, the 8.10 update will feature support for 3G hardware connections as well as the ability to write and start up a system from an external USB drive. The update also adds support for guest sessions as well as free BBC content available in bundled multimedia applications.

Ubuntu's Gnome graphical interface has also been updated for the latest release.

"Ubuntu 8.10 sees us lay the groundwork for a radically different, more mobile desktop computing environment over the next two years," said Canonical chief operating officer Jane Silber, who promised that updates and improvements to the operating system would exceed those of rival operating systems.

The updated server edition of Ubuntu will sport enhanced virtualisation tools and Java components, as well as improved Raid storage support.

Stronger security is a central component of the update as well. Canonical touted Ubuntu Server's improved mail and encryption features along with better compiling and reporting tools and an updated firewall system.

"Ubuntu 8.10 Server Edition is a terrific milestone that underlines the value in our twin track release strategy," Silber said of the release.

"The server edition embraces cloud computing, virtualisation, mail server enhancements, Java development and deployment as well as a range of services to help system administrators and developers.