Extension updates and pg_upgrade

Our minor releases coming out this week will create a script when
pg_upgrade finishes that contains ALTER EXTENSION ... UPDATE commands
for extension that show updates in pg_available_extensions. However, I
am unclear if all extensions that have updates are reported in
pg_available_extensions or support ALTER EXTENSION ... UPDATE, e.g.,
PostGIS. Do the new pg_upgrade docs need to be more vague about this?

--
Bruce Momjian <bruce(at)momjian(dot)us> https://momjian.us
EDB https://enterprisedb.com

If only the physical world exists, free will is an illusion.