It is now possible to upgrade Linux Mint 18 and 18.1 to version 18.2.
If you’ve been waiting for this I’d like to thank you for your patience.
Upgrading to 18.2 is relatively easy.
In the Update Manager, click on the Refresh button to check for any new version of mintupdate and mint-upgrade-info. If there are updates for these packages, apply them.
Launch the System Upgrade by clicking on “Edit->Upgrade to Linux Mint 18.2 Sonya”.
Follow the instructions on the screen.