This past week the Linux Mint team published a major update to the project's Linux Mint Debian Edition (LMDE) branch. The newly released version 3 is only available in one edition (Cinnamon) and this means the upgrade procedure for LMDE 2 users will be different depending on which edition they are using. The project's newsletter explains: "The upgrade path for the Cinnamon edition was also opened. Timeshift, Slick Greeter and mintupgrade were backported towards LMDE 2 to facilitate the upgrade and the switch from MDM with sysvinit to LightDM with systemd. If you are running LMDE 2 Cinnamon, please upgrade before the end of the year. We'll continue to support LMDE 2 until the 1st of January 2019. The LMDE 2 MATE edition cannot be upgraded (Debian's version of MATE is only 1.16 and this edition is no longer present in LMDE 3), we recommend users perform data and software backups and upgrade their OS via fresh installations. MATE packages in LMDE 2 will also be supported until the 1st of the January 2019."