Regarding next LTS upgrade - 20.x
60762
Ubuntu non LTS to LTS in the future
134530
Can I look at the upgrade log after a distribution upgrade?
140850
Why does do-release-upgrade on Xubuntu running version 18.04 not offer to update to 20.04.1?
110148
Why does `do-release-upgrade` skip a version?
22189
MSSQL Server Upgrade, go for latest or version before that
117557
When will Ubuntu 18.04 release and at what time?
112955
How can I upgrade Ubuntu from 19.10 to 20.04 without losing packages?
101714
Is there any way to roll back the most recent upgrade?
98421
How will people upgrade from 12.10 to later releases after 13.04 is EOL?
104370
What's going to happen to the Unity desktop environment and default Ubuntu version?
74079
How to Upgrade Ubuntu 12.04.2, 12.04.3 to 12.04.4, the next Hardware Enablement Stack?
22615
How to upgrade shared library without crash?
49161
Upgrade manager wants me to do a partial upgrade
146622
What is a partial upgrade and when is it necessary?
35146
Will apt-get dist-upgrade upgrade my system to newer version?
78587
How do I update core to 8.5?
127766
how to upgrade my Debian package with minor changes