Linux Mint 19.1 MATE is latest release of Linux Mint 19.1 which use MATE desktop 1.20 as default desktop enviroment include MATE applications 1.20 and brings all the goodies from the Ubuntu 18.04.1 LTS (Bionic Beaver) release.
The MATE desktop environment offers a clean and uncluttered graphical session for this Linux Mint release. It is comprised of a single panel located on the bottom edge of the screen, from where the user can access the main menu, launch applications and interact with opened windows.
Linux Mint 19.1 comes with Linux-firmware 1.173.2 and the Linux kernel 4.15.0-20 and includes changes that are supposed to make signing into the desktop more user-friendly. support for installing mainline kernels from the Update Manager in case you need a driver for your hardware that’s only available in certain Linux kernel versions.
Linux Mint 19.1 “Tessa” will be supported for five years, until 2023, and that Linux Mint 19 “Tara” users will be able to upgrade to Linux Mint 19.1 “Tessa” via the in-house built Update Manager utility.
For more information about his release, you can read at Linux Mint 19.1 MATE Edition