Linux Mint, the popular Ubuntu derivative, has out today its version 15 "Olivia" release with many new features.
Many of the features were talked about when covering the Olivia release candidate earlier this month
. To recap, there's MATE 1.6 and Cinnamon 1.8 on the desktop side, a new log-in screen with support for HTML5 themeing, new Source Sources and Driver Manager utilities, and other updated components. Linux Mint 15 is derived from the Ubuntu 13.04 package-set.
More details on Linux Mint 15 can be found via the Linux Mint blog