How can I upgrade from Ubuntu 6.06?
114305
On really old Ubuntu 6.06 - How to upgrade
128471
How do I update from 9.0.10 to 9.1.0?
67359
Upgrade to the latest PHP version in Ubuntu
50810
No upgrade available for 19.04 from 18.10
58979
How can I upgrade Ubuntu LTS to the next one offline?
32829
One single command to update everything in Ubuntu?
31506
How do I update Ubuntu manually?
35093
Upgrading from the command line?
25919
How to replace an old version of Ubuntu with a newer one from USB/DVD?
121201
Why can't I update applications without upgrading the whole OS?
5882
How to upgrade Ubuntu from an ISO image
105335
How do I upgrade my Ubuntu server from one LTS version to another? Is this safe?
21323
Where can I download the latest release of Ubuntu?
36703
How do I upgrade from 12.10 to 13.04?
100141
Is there any "official" guidance to upgrading from Lubuntu 18.04 LTS (LXDE) to Lubuntu 18.10 (LXQt)
129101
Upgrading Ubuntu 9.04 to 9.10 when Update Manager doesn't let you
144172
How to upgrade to a point release from the same base release (12.04 to 12.04.03)