Dave McGuire writes:
Hi folks, we're running a decent-sized MM3 server backed by a Postgres database server that is also used by a number of other applications. It's currently running Postgres 13, and we are looking at upgrading to 16.
Pretty sure there was an authn/authz-related issue somewhere around Postgres 14. It's well-documented on the site, it just bit me on a Debian update. I no longer have access to that host so I don't recall what it was, just that it threw a clear error, and a little web search pointed directly to several useful articles on the PostgreSQL site. One of them was specifically about upgrading from v.X to v.(X+1).
-- GNU Mailman consultant (installation, migration, customization) Sirius Open Source https://www.siriusopensource.com/ Software systems consulting in Europe, North America, and Japan