Upgrading from 13.10 to 14.04
12578
How do I upgrade to a newer version of Ubuntu?
43279
Alternative Method to Acquire El Capitan Upgrade
79358
Upgrade High-Trust Addin/App from 2013 to 2016
101714
Is there any way to roll back the most recent upgrade?
16578
How to upgrade a single package using apt-get?
35243
Is it safe to do-release-upgrade from 12.04.4 to 14.04.1?
35093
Upgrading from the command line?
9901
How to upgrade from 18.10 to 19.10, using the command line?
119595
Is it necessary to upgrade to 14.04 LTS or can I stand in 12.04 LTS forever with no problem?
421
How do I update a Drupal distribution to a newer version?
89856
How to resume the interrupted upgrade from 14.10 to 15.04?
97346
Is it possible to skip releases during an upgrade?
38925
Can you update to macOS 10.14 (Mojave) without converting to APFS?
2670
Why is "No new release found" when upgrading from a LTS to the next?
67481
How to revert a do-release-upgrade?
16837
Unable to upgrade from 14.04 to 14.10 "Cannot Calculate Upgrades"
144507
No facility exists in Update Manager to upgrade to a new version, why?