- To 21.1 (from 21): https://blog.linuxmint.com/?p=4461
- To 21 (from 20.3): https://blog.linuxmint.com/?p=4378
- To 20.3 (from 20.2 / 20.1 / 20): https://blog.linuxmint.com/?p=4216
- To 20 (from 19.3): https://blog.linuxmint.com/?p=3946
- To 19.3 (from 19.2 / 19.1 / 19): https://blog.linuxmint.com/?p=3838
For obsoleted versions see here: https://community.linuxmint.com/tutorial/view/2

