How to Upgrade to 15.04 without upgrading to 14.10?
211
Can I skip over releases when upgrading?
2136
How to roll back Ubuntu to a previous version?
87236
How to upgrade Ubuntu 12.04 to 13.10?
113942
Is it possible to install Python 3.x in 14.04 LTS, or upgrade from Python 2.7.6 to 2.7.8?
109539
How can I perform an offline upgrade using Ubiquity on the installation disc?
16428
Upgrade to the latest PHP version in ubuntu 16.04
15687
How do I resume a release upgrade?
130585
How can I install an older version of Firefox?
5820
How to fix the “Unable to calculate upgrade” issue from command line when upgrading from 12.04 to 14.04?
2670
Why is "No new release found" when upgrading from a LTS to the next?
12578
How do I upgrade to a newer version of Ubuntu?
89856
How to resume the interrupted upgrade from 14.10 to 15.04?
72152
Upgrading 16.04 to 16.04.1
63232
How to update kernel to the latest mainline version without any Distro-upgrade?
97346
Is it possible to skip releases during an upgrade?
119595
Is it necessary to upgrade to 14.04 LTS or can I stand in 12.04 LTS forever with no problem?
77692
How do I update Drush to the latest available version?