Ubuntu MATE 14.04.2 is an updated build of the Ubuntu-based distribution featuring the MATE desktop environment. This release fixes a few issues that were present in 14.04.1, adds some new features and updates some packages. It is important to state clearly that Ubuntu MATE 14.04.2 is not an official Ubuntu flavour! The upside of maintaining an unofficial Ubuntu derivative is that we can roll out new features and package updates. So we did, most notably LibreOffice 4.4.1. The advantage of the newer Linux kernel is that it resolves most of the screen tearing issues some people experienced in Ubuntu MATE 14.04.1.
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.