The Mint 18.2 “Sonya” operating system was released yesterday. Today all the users of Mint Linux 18.1 “Sarah” can upgrade their systems as he says Clement Lefebvre in an official statement.
The route upgrades is open to all Linux Mint 18.1 users, regardless of the flavor they use (eg Cinnamon, MATE, KDE or Xfce).
"It is now possible to upgrade Linux Mint 18 and 18.1 to version 18.2 If you were expecting it I would like to thank you for your patience: upgrading to 18.2 is relatively easy," says Clement Lefebvre.
To upgrade from Linux Mint 18.1 to Linux Mint 18.2, you should open the Update Manager application, and click the “Refresh” button to check for new versions of the mint-upgrade-info packages and mintupdate. After installing the two packages, open it utility System Upgrade, go to the Edit menu and click “Upgrade to Linux Mint 18.2 Sonya” or “Upgrade to Linux Mint 18.2 Sonya.”
Follow the instructions on the screen.
Make sure you have chosen to replace all configuration files when prompted to keep them or replace them. Once the upgrade process is complete, you will have to restart your computer and you will be ready to use your new Linux Mint 18.2 operating system.
Note that the upgrade process will not update the kernel packages to the new version using Linux Mint 18.2 nor will it replace the MDM (Mint Display Manager) with the LightDM connection screen used in the new version of Cinnamon.
Of course you can choose to install them via Update Manager. Run the following commands on your terminal to install the LightDM.
apt install slick-greeter lightdm-settings apt remove mdm sudo reboot
