How do I upgrade from 11.04 to 11.10?
7580
How to safely upgrade from an older Ubuntu version to a newer one?
11556
Can I smoothly upgrade from one LTS to next LTS release?
13970
Why am I not getting the Ubuntu 18.04 upgrade?
31506
How do I update Ubuntu manually?
50810
No upgrade available for 19.04 from 18.10
120436
Point Release upgrade from 14.04.1 to 14.04.2?
10709
Can i upgrade ubuntu without losing my apps and files?
43648
Why isn't an upgrade to 20.04 from 18.04 available yet?
147789
Updating core from 8.4.4 to 8.6.1
35243
Is it safe to do-release-upgrade from 12.04.4 to 14.04.1?
12614
Upgrade problem
140371
Update Ubuntu 10.04
19288
Update manager doesn't offer an upgrade to the new release
43778
Is it possible to "upgrade" from a 32bit to a 64bit installation?
85946
Upgrading Python
158735
How to update Wine to the latest version?
75798
How to upgrade to the latest GNOME version?