What benefits would I see upgrading from 14.04 to 15.04 and what are some caveats?
14506
What's the difference between a Long Term Support Release and a Normal Release?
127766
how to upgrade my Debian package with minor changes
82073
What are the downsides of removing ubuntu-desktop metapackage?
70726
Windows (7, 8, 10) - Is a clean install better than an upgrade and if so why? (be specific)
81570
What does `--frontend` do in `do-release-upgrade` and where can I find the list of possible values?
29191
Upgrade to 18.04 from 17.10
157289
Why use apt-get upgrade instead of apt-get dist-upgrade?
113942
Is it possible to install Python 3.x in 14.04 LTS, or upgrade from Python 2.7.6 to 2.7.8?
91210
Why does Ubuntu only support versions for a limited time (and what does it mean)?
42634
How do I upgrade to the development release (aka. Ubuntu+1)?
71792
Recommended ways to upgrade AlwaysOn AG from 2014 to 2016
71284
What are all the Windows 7/8/8.1 updates (KBs) I must skip to avoid Windows 10 upgrading -and nags-?
105335
How do I upgrade my Ubuntu server from one LTS version to another? Is this safe?
120436
Point Release upgrade from 14.04.1 to 14.04.2?
22615
How to upgrade shared library without crash?
132533
back-up: which patitions to back-up before upgrading/reinstalling
5820
How to fix the “Unable to calculate upgrade” issue from command line when upgrading from 12.04 to 14.04?