Ubuntu MATE 15.10 is the new release of this community edition of the Ubuntu distribution is mostly a big fix and polish release which updates existing software and corrects some issues with past versions. Fixed update-manager and do-release-upgrade to upgrade from Ubuntu MATE 15.04 to Ubuntu MATE 15.10. Fixed the openSUSE panel layout, GNOME Main Menu no longer crashes. Fixed ubi-timezone error in Ubiquity. Fixed Caja undelete.
About Ubuntu Mate
Ubuntu MATE is a desktop Linux distribution which aims to bring the simplicity and elegance of the Ubuntu operating system through a classic, traditional desktop environment - the MATE desktop. MATE is the continuation of the GNOME 2 desktop environment which was used as Ubuntu's default desktop until 10.10 (when it was replaced by Unity). The project began its life as an Ubuntu "remix", but starting with version 15.04, it was formally accepted as an official member of the Ubuntu family of Linux distributions.