MATE 1.18 comes about 6 months after the release of MATE 1.16, during which was developed under the MATE 1.17.x umbrella, packages that some of you were able to install from the testing repositories of your favorite GNU/Linux distributions. Thie release focuses on completing the GTK+3 migration, but also adds new features. What this means exactly is that the entire MATE desktop environment is now based on the latest GTK+ 3 technologies. GTK+ 3.14 or latest is required to install MATE 1.18, which is no longer compatible with the GTK+ 2 series. All the included applications and components were successfully ported to GTK+ 3.