https://sites.google.com/site/easylinuxtipsproject/upgrademint

How to upgrade to Linux Mint 18.3
https://blog.linuxmint.com/?p=3462

https://forums.linuxmint.com/viewtopic.php?t=258210


How to upgrade to Linux Mint 19
https://www.youtube.com/watch?v=fF91NXvh130

sudo apt update && sudo apt full-upgrade
sudo sed -i '/sylvia/tara/' /etc/apt/sources.list
sudo sed -i '/sylvia/tara/' /etc/apt/sources.list.d/official-package-repositories.list
sudo apt update && sudo apt upgrade
sudo apt-get dist-upgrade
sudo reboot


Linux Mint : Upgrade to Last Version | Test 18.3 to 19
https://www.youtube.com/watch?v=Nu_NwjwJt3g

xenial->bionic
sylvia->tara