We need a canonical answer for "Why do the repositories not have the latest versions of software".
Anyone who can write one (if one does not already exist) will be rewarded with a +100 Rep bonus courtesy of a bounty after-the-fact.
I continue to see many questions about "Why is/are [software] in the repos older than [version]?" with differing wording, but the answer needs to be the same. A canonical question and answer would be wonderful
This was proposed, but is not what I seek: Why can't I update applications without upgrading the whole OS?
The question/answer I'm asking for is about the disparity between upstream latest and current repository versions, not upgrading packages separately from upgrading the OS.
The following is the canonical question:
Why don't the Ubuntu repositories have the latest versions of software?
Marked as completed as requested by the OP.