Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com> writes:
> It would be nice to mention this on --announce and here as this still
> exists:
> https://www.postgresql.org/docs/13/plpython-python23.html
You're confusing what the source code can do (which is what the
manual documents) versus what individual packagers choose to support.
The packagers frequently don't have a lot of choice in the matter;
once their platform drops python2, they can't support plpython2.
regards, tom lane