Why do-release-upgrade does not show 14.04 even if it was officially released?
2670
Why is "No new release found" when upgrading from a LTS to the next?
128471
How do I update from 9.0.10 to 9.1.0?
14631
Can someone clarify Ubuntu (Debian) dist-upgrade for me?
83074
Why does the separation of update and upgrade even exist?
67481
How to revert a do-release-upgrade?
154072
Ubuntu 17.10 doesn't show up in update-manager
21528
How can I find the version of Ubuntu that is installed?
9901
How to upgrade from 18.10 to 19.10, using the command line?
59088
How to upgrade to a newer release of Ubuntu using the Live CD?
56225
Do I have to download both the 14.04 and the 14.04.1 versions of ubuntu?
42634
How do I upgrade to the development release (aka. Ubuntu+1)?
8353
How do I access my software updater if it doesn't display anywhere?
119595
Is it necessary to upgrade to 14.04 LTS or can I stand in 12.04 LTS forever with no problem?
16837
Unable to upgrade from 14.04 to 14.10 "Cannot Calculate Upgrades"
35243
Is it safe to do-release-upgrade from 12.04.4 to 14.04.1?
120436
Point Release upgrade from 14.04.1 to 14.04.2?
15687
How do I resume a release upgrade?