Upgrade from 19.04 to 20.04
211
Can I skip over releases when upgrading?
2670
Why is "No new release found" when upgrading from a LTS to the next?
35243
Is it safe to do-release-upgrade from 12.04.4 to 14.04.1?
64558
What does `do-release-upgrade` really do?
59088
How to upgrade to a newer release of Ubuntu using the Live CD?
9901
How to upgrade from 18.10 to 19.10, using the command line?
140371
Update Ubuntu 10.04
43917
What is the difference between apt-get update and upgrade?
86777
Distribution upgrade problem "No new release found"
155154
I am currently using 19.04 and I got "No new release found for 19.10"
6833
Why is my Ubuntu 18.04 distribution asking me to upgrade to Pop!_OS 19.10?
12614
Upgrade problem
144172
How to upgrade to a point release from the same base release (12.04 to 12.04.03)
120161
Ubuntu 19.04 problems install upgrades
83960
How do I change my update server in Ubuntu 18.04?
129101
Upgrading Ubuntu 9.04 to 9.10 when Update Manager doesn't let you
2136
How to roll back Ubuntu to a previous version?