If you plan on installing or reinstalling Ubuntu MATE this spring, the upcoming 18.04 release sports a new default layout called “Familiar.” According to Martin Wimpress, the new layout is based on the Traditional layout with the menu-bar replaced by Brisk Menu, which was used in previous Ubuntu MATE releases. The decision to replace the Traditional layout with the Familiar one was taken due to some technical issues when the development team tried to update it for Ubuntu MATE 18.04 LTS (Bionic Beaver). Traditional will still be available, but not enabled by default, and bears no changes.