Upgrading from 15.04 to LTS 16.04
211
Can I skip over releases when upgrading?
119971
Install 17.10 on 32 bit machine
5820
How to fix the “Unable to calculate upgrade” issue from command line when upgrading from 12.04 to 14.04?
31892
New "Ubuntu Software" not working (16.04)
126915
Upgrading an old mac mini intel 1.1 for Lion
125352
How to install libboost_version1.59 or newer on Ubuntu16.04
4660
Should I be offered the option to upgrade to 18.04.1?
138666
How to install git-lfs on Ubuntu 16.04?
144507
No facility exists in Update Manager to upgrade to a new version, why?
34999
What are point releases in LTS versions?
147789
Updating core from 8.4.4 to 8.6.1
140850
Why does do-release-upgrade on Xubuntu running version 18.04 not offer to update to 20.04.1?
100135
What does "upgrade to 18.04" mean?
113942
Is it possible to install Python 3.x in 14.04 LTS, or upgrade from Python 2.7.6 to 2.7.8?
9901
How to upgrade from 18.10 to 19.10, using the command line?
80233
Upgrade to 20.04 from 19.10 isn't available
62935
Upgrade timeline of LTS to LTS and non LTS to LTS