pg_upgrade-breaking release

Do we think most people are _not_ going to use pg_upgrade now that we
are defaulting to checksums being enabled by default in PG 18?  And if
so, do we think we are ever going to have a storage-format-changing
release where pg_upgrade cannot be used?

Maybe it is too late to ask this, but I am asking anyway.

-- 
  Bruce Momjian  <bruce@momjian.us>        https://momjian.us
  EDB                                      https://enterprisedb.com

  Do not let urgent matters crowd out time for investment in the future.