Software Updater 14.04 LTS to 16.04.5 LTS upgrade
35243
Is it safe to do-release-upgrade from 12.04.4 to 14.04.1?
64558
What does `do-release-upgrade` really do?
101714
Is there any way to roll back the most recent upgrade?
88901
Updates for Ubuntu LTS Desktop versus LTS Server
24165
Upgrade to version newer than repositories
127852
How do I update a program installed from a manually-downloaded deb package?
129223
Ubuntu upgrade from 17.04 to 18.04
110148
Why does `do-release-upgrade` skip a version?
33651
How to upgrade from Ubuntu 12.10 to 14.04
35190
"Software Updater" & "Software & Updates" not working
35566
Kernel did not upgrade between 14.04 LTS to 16.04 LTS
58888
Change Ubuntu 17.04 to Ubuntu 16.04.2 LTS
63176
How can I update to Ubuntu 21.04?
94171
Why Does Software Updater Say No updates Available, but apt-get upgrade Shows updates available?
100494
Update Manager asking me to update kernel but apt-get upgrade does not?
211
Can I skip over releases when upgrading?
69200
How do I reinstall Ubuntu Software in Ubuntu 20.04 LTS version?