Strictly upgrade to 16.04 from 14.04
12578
How do I upgrade to a newer version of Ubuntu?
64558
What does `do-release-upgrade` really do?
7580
How to safely upgrade from an older Ubuntu version to a newer one?
10678
Upgrade to the specific php 7.1/7.2 from php 7.0 in Ubuntu 16.04
128471
How do I update from 9.0.10 to 9.1.0?
147789
Updating core from 8.4.4 to 8.6.1
4660
Should I be offered the option to upgrade to 18.04.1?
14631
Can someone clarify Ubuntu (Debian) dist-upgrade for me?
127766
how to upgrade my Debian package with minor changes
19288
Update manager doesn't offer an upgrade to the new release
63278
Update Linux Subsystem on Windows (Ubuntu) to 16.04
59088
How to upgrade to a newer release of Ubuntu using the Live CD?
123950
How to upgrade only core with drush?
110148
Why does `do-release-upgrade` skip a version?
80106
How do I enable automatic updates?
31506
How do I update Ubuntu manually?
36703
How do I upgrade from 12.10 to 13.04?