How to upgrade Kubuntu from 19.04 to 20.04
211
Can I skip over releases when upgrading?
23302
How do I install/upgrade r-base to the latest version?
58888
Change Ubuntu 17.04 to Ubuntu 16.04.2 LTS
114305
On really old Ubuntu 6.06 - How to upgrade
62426
Should I use KUbuntu or Ubuntu 16.04 for KDE Plasma desktop environment?
129101
Upgrading Ubuntu 9.04 to 9.10 when Update Manager doesn't let you
36703
How do I upgrade from 12.10 to 13.04?
131741
How to upgrade Kali Linux
29191
Upgrade to 18.04 from 17.10
127766
how to upgrade my Debian package with minor changes
105181
Trying to install kubuntu and need help
69200
How do I reinstall Ubuntu Software in Ubuntu 20.04 LTS version?
20399
How do I upgrade from 14.04 LTS to 16.04.1 LTS?
75380
upgrading glibc to a version at least 2.17 or higher in ubuntu 12.04 LTS?
68096
Can I change my Ubuntu Desktop into a different flavour (like Kubuntu)?
58979
How can I upgrade Ubuntu LTS to the next one offline?
105335
How do I upgrade my Ubuntu server from one LTS version to another? Is this safe?