> The question is not how to replace some .EXE and .DLL files or modify
> something in the registry. The question is what to do with the existing
> databases in the case of a catalog version change. You have to dump and
> restore.
pg_upgrade?
Otherwise: no upgrades persay, but you can intall the new version into a new
directory and then have an automated pg_dump / restore between the old and
the new. This would require a lot of disk space, but I don't see any other
clean way to automate it.