Upgrading from the command line?
1520
How to install software or upgrade from an old unsupported release?
12164
How do I update my TeX distribution?
36848
How do I safely install an older/newer version of Python?
120229
Understanding various update and upgrade commands
100963
How to only perform LTS upgrades?
20399
How do I upgrade from 14.04 LTS to 16.04.1 LTS?
63176
How can I update to Ubuntu 21.04?
144172
How to upgrade to a point release from the same base release (12.04 to 12.04.03)
121201
Why can't I update applications without upgrading the whole OS?
24165
Upgrade to version newer than repositories
120436
Point Release upgrade from 14.04.1 to 14.04.2?
94282
Is Ubuntu Server only available with the command line?
59088
How to upgrade to a newer release of Ubuntu using the Live CD?
111573
What's the best way to re-enable PPAs/repos after an upgrade?
211
Can I skip over releases when upgrading?
67359
Upgrade to the latest PHP version in Ubuntu
123958
How do I search for available packages from the command-line?