Specifically, how to upgrade from 18.04 to 18.10 (next development version) from the command-line?
42634
How do I upgrade to the development release (aka. Ubuntu+1)?
140470
How do I update kernel to the latest mainline version?
144507
No facility exists in Update Manager to upgrade to a new version, why?
19288
Update manager doesn't offer an upgrade to the new release
93052
How can I update my nodeJS to the latest version?
72152
Upgrading 16.04 to 16.04.1
127766
how to upgrade my Debian package with minor changes
66915
How to request a package upgrade in the next Ubuntu release
98421
How will people upgrade from 12.10 to later releases after 13.04 is EOL?
54571
How do I install the latest version of Git with apt?
110148
Why does `do-release-upgrade` skip a version?
100135
What does "upgrade to 18.04" mean?
67481
How to revert a do-release-upgrade?
113056
How to upgrade from 12.04 to 12.10 using CD?
114305
On really old Ubuntu 6.06 - How to upgrade
144172
How to upgrade to a point release from the same base release (12.04 to 12.04.03)
35146
Will apt-get dist-upgrade upgrade my system to newer version?