An upgrade from 'artful' to 'zesty' is not supported. Trying to upgrade from 16.04 to 17.10
211
Can I skip over releases when upgrading?
4660
Should I be offered the option to upgrade to 18.04.1?
35539
How do I install the latest version of node.js?
154622
How do I resolve this installation error?
4068
Why am I getting an “invalid active developer path” when attempting to use Git after upgrading macOS?
31892
New "Ubuntu Software" not working (16.04)
421
How do I update a Drupal distribution to a newer version?
50810
No upgrade available for 19.04 from 18.10
64509
Can't update from official repositories [Error 409]
24165
Upgrade to version newer than repositories
7671
I get an error with the archipack
12578
How do I upgrade to a newer version of Ubuntu?
80233
Upgrade to 20.04 from 19.10 isn't available
76241
"no public key available" while upgrading using update-manager
144507
No facility exists in Update Manager to upgrade to a new version, why?
5820
How to fix the “Unable to calculate upgrade” issue from command line when upgrading from 12.04 to 14.04?
121201
Why can't I update applications without upgrading the whole OS?