Is it possible to upgrade directly from 15.04 to 16.04?
211
Can I skip over releases when upgrading?
112955
How can I upgrade Ubuntu from 19.10 to 20.04 without losing packages?
63232
How to update kernel to the latest mainline version without any Distro-upgrade?
43281
Upgrade Debian Jessie (8) to Buster (10) possible or need to go sequential in versions upgrades?
67481
How to revert a do-release-upgrade?
125976
What Happens When I Upgrade Ubuntu?
151605
upgrading from 15.10 to 16.04 apt not installed
147789
Updating core from 8.4.4 to 8.6.1
60659
Install newer package version from trusty-backports
68867
Updating directly from SP1 to SP3
4660
Should I be offered the option to upgrade to 18.04.1?
43778
Is it possible to "upgrade" from a 32bit to a 64bit installation?
16050
Can I upgrade Xubuntu 18.04 32-bit?
101714
Is there any way to roll back the most recent upgrade?
79358
Upgrade High-Trust Addin/App from 2013 to 2016
128471
How do I update from 9.0.10 to 9.1.0?
85188
Is it possible to update any iOS 6 device to iOS 6.1.6?