Upgrading from 12.04 to 13.04
211
Can I skip over releases when upgrading?
109539
How can I perform an offline upgrade using Ubiquity on the installation disc?
72152
Upgrading 16.04 to 16.04.1
83107
12.04 continuously offering partial upgrade
126659
upgrade from 11.10 to 12.04 - No upgrade option available in update manager
35146
Will apt-get dist-upgrade upgrade my system to newer version?
29191
Upgrade to 18.04 from 17.10
13970
Why am I not getting the Ubuntu 18.04 upgrade?
127766
how to upgrade my Debian package with minor changes
100135
What does "upgrade to 18.04" mean?
421
How do I update a Drupal distribution to a newer version?
125976
What Happens When I Upgrade Ubuntu?
102559
How to install package from newer distribution?
142700
What's the difference between 12.04 and 12.10?
36892
Upgrading from Yosemite to El Capitan, but not Sierra
7580
How to safely upgrade from an older Ubuntu version to a newer one?
63176
How can I update to Ubuntu 21.04?