> Why on earth should you have to enable some kind of backports repository to keep applications up to date?
I answered that in the article itself:
Unfortunately, Plasma 5.26's October release date meant it came out too late to be included in Kubuntu 22.10, which was released alongside the other remixes on October 20.
Ubuntu remixes are only very slightly official, but they do have to follow some guidelines. Among them are that the packages from which the remixes are built must be in the Ubuntu repositories.
Either KDE 5.26 wasn't in the repos yet, or it was but they just didn't have time to integrate *and test* it. This is a volunteer effort, remember.
As the article says...
KDE 5.26: October 11.
Kubuntu 22.10: October 20.
That is not long.
If it were my project, I'd delay it and release a bit later with the current version, but it's not. Perhaps the remixes all have to release on the same date in order to be official?
Canonical itself is only really interested in talking about the official supported version, and that means GNOME. I ask tried asking about remixes before and they don't know -- or care, AFAICS.