Re: PostgreSQL and OpenSSL 4.0.0

From: Michael Paquier <michael(at)paquier(dot)xyz>
To: Daniel Gustafsson <daniel(at)yesql(dot)se>
Cc: PostgreSQL-development <pgsql-hackers(at)lists(dot)postgresql(dot)org>
Subject: Re: PostgreSQL and OpenSSL 4.0.0
Date: 2026-05-07 22:13:05
Message-ID: af0OcVKUaAMW1RaR@paquier.xyz
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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

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