Comment 33 for bug 2006402

The versioning implies a straight backport of the Ubuntu packaging in mantic (23.02-0ubuntu1~20.04.1), rather than a change to the Ubuntu package in focal (23.02-0ubuntu0.20.04.1), but they apply to the focal tree and miss the changelog entries from later releases.

I'd propose merging changelog with dpkg-mergechangelog such that all intermediate releases are included. Probably not necessarily building them with -v as that adds all the other bugs to the SRU.

Or alternatively, to change the versioning and explain all the changes in the SRU.