Re: pg_upgrade (12->14) fails on aggregate

On Wed, Jun 29, 2022 at 10:58:44PM +0500, Andrey Borodin wrote:
> > On 28 Jun 2022, at 04:30, Justin Pryzby <pryzby@telsasoft.com> wrote:
> > 
> > Nope, it's as I said: this would break pg_upgrade from older versions.
> 
> As far as I understand 9.5 is not supported. Probably, it makes sense to keep pg_upgrade running against 9.5
clusters,but I'm not sure if we do this routinely.
 

As of last year, there's a reasonably clear policy for support of old versions:

https://www.postgresql.org/docs/devel/pgupgrade.html
|pg_upgrade supports upgrades from 9.2.X and later to the current major release of PostgreSQL, including snapshot and
betareleases.
 

See: e469f0aaf3c586c8390bd65923f97d4b1683cd9f

-- 
Justin