Re: upgrade questions

> On Feb 9, 2024, at 10:00 AM, David Barron <david.barron@zencos.com> wrote:
>
> I’ve also seen references to copying over the pg_hba.conf and postgresql.conf files from the old data directory to
thenew. 

Then you will be getting default values for the many, many parameters added to postgresql.conf between 11 & 15--and
willhave no explanatory entries documenting them. A much better suggestion is to diff the two, and apply customizations
fromthe old to the new. (Also skim release notes for any that have been mooted.)