Online Upgrade from Ubuntu 16.04 LTS to 18.04 LTS
100135
What does "upgrade to 18.04" mean?
120436
Point Release upgrade from 14.04.1 to 14.04.2?
58979
How can I upgrade Ubuntu LTS to the next one offline?
147789
Updating core from 8.4.4 to 8.6.1
29191
Upgrade to 18.04 from 17.10
100963
How to only perform LTS upgrades?
101714
Is there any way to roll back the most recent upgrade?
92107
Is there a 32-bit version of Ubuntu 18.04 desktop?
140850
Why does do-release-upgrade on Xubuntu running version 18.04 not offer to update to 20.04.1?
123413
Will apt-get dist-upgrade upgrade my system to a newer version?
52190
How and when is old-releases.ubuntu.com updated?
90512
Upgrading from 12.10 WUBI install to 13.04
56282
16.04 LTS upgrade alert- How to handle it?
35093
Upgrading from the command line?
68597
Will upgrading Ubuntu remove installed software?
107548
Where can I download Ubuntu 16.04?
83960
How do I change my update server in Ubuntu 18.04?