In a clever move by Canonical the next release of Ubuntu, 10.10, was released today, the tenth day of the tenth month of the tenth year. This release, named Maverick Meerkat, only has minor upgrades to most packages that effect servers with the only major upgrade being to Eucalyptus. It does include the update to 3.2.1 for Nagios which includes a slightly improved site design as well as bug fixes which I was happy to see.
This release also serves as a reminder that Ubuntu 9.04 ( Jaunty Jackalope ) will enter end of life in 13 days, October 23. What does this mean? From Ubuntu's official announcement: "At that time, Ubuntu Security Notices will no longer include information or updated packages for Ubuntu 9.04."
To find out more about the release, check out the release notes or download and install it for yourself. You can also take Ubuntu up on it's offer of a free hour of Maverick in the cloud via their Ubuntu on Cloud 10 project.