Re: PostgreSQL and OpenSSL 4.0.0

Michael Paquier <michael@paquier.xyz>

From: Michael Paquier <michael@paquier.xyz>
To: Daniel Gustafsson <daniel@yesql.se>
Cc: PostgreSQL-development <pgsql-hackers@lists.postgresql.org>
Date: 2026-05-07T22:13:05Z
Lists: pgsql-hackers
On Thu, May 07, 2026 at 03:44:45PM +0200, Daniel Gustafsson wrote:
> For 14 through master the attached compiles without warnings and tests green on
> all the supported versions of OpenSSL and LibreSSL.  That being said, I'm not
> sure that we want to go all the way to 14 since if something does break, we
> can't really go around fixing it - I think amending the docs in 14 stating that
> OpenSSL 3.6 is the highest supported version is a better solution.

One issue with this approach is that any builds on these branches (say
REL_14_STABLE + OpenSSL 1.0.1) would be forced to either upgrade
OpenSSL to at least 3.6 for a minor Postgres update or give up on any
fix we can put on the 14 stable branch for six more months.  None of
these solutions are cool.
--
Michael