Content-Type: text/plain;
	charset=us-ascii
Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3776.700.51.11.12\))
Subject: Re: PostgreSQL and OpenSSL 4.0.0
From: Daniel Gustafsson <daniel@yesql.se>
In-Reply-To: <ahY1aR4te1ffXkA2@paquier.xyz>
Date: Wed, 27 May 2026 12:47:32 +0200
Cc: Tom Lane <tgl@sss.pgh.pa.us>,
 PostgreSQL-development <pgsql-hackers@lists.postgresql.org>
Content-Transfer-Encoding: quoted-printable
Message-Id: <D020ACBB-A431-4068-92BE-218C26881FD0@yesql.se>
References: <aeKrQfeyDLVE3cmw@paquier.xyz>
 <65C5DC15-DE27-4D36-8AEE-A854C23B3834@yesql.se>
 <af0OcVKUaAMW1RaR@paquier.xyz> <898414.1778192534@sss.pgh.pa.us>
 <1A5104C0-E9EF-4D90-9627-23D3D909104B@yesql.se>
 <af2ODKxUkLzFIiuX@paquier.xyz>
 <95045A62-9A81-4AD8-BA25-D8648BD68499@yesql.se>
 <A6A15B8A-FCAE-455A-A5AE-EC3A7934F987@yesql.se>
 <ahU3irfvsoO5Ul9S@paquier.xyz>
 <D0390DDA-4F5E-404C-A710-6D458452B833@yesql.se>
 <ahY1aR4te1ffXkA2@paquier.xyz>
To: Michael Paquier <michael@paquier.xyz>
Archived-At: 
 <https://www.postgresql.org/message-id/D020ACBB-A431-4068-92BE-218C26881FD0%40yesql.se>
Precedence: bulk

> On 27 May 2026, at 02:06, Michael Paquier <michael@paquier.xyz> wrote:
>=20
> On Tue, May 26, 2026 at 10:16:40AM +0200, Daniel Gustafsson wrote:
>> I have plans for fixing this in v20 but for 14-19 there isn't much we =
can do
>> except unconstifying.
>=20
> Indeed, no objections regarding that for the stable branches.

Thanks for confirming.  I am currently re-testing all the combinations =
of stable
postgres branches and supported OpenSSL and LibreSSL versions.

> For v20, it sounds to me that cutting through the set of versions of
> OpenSSL supported should make the situation much saner, even if the
> range of changes seems to be limited due to the LibreSSL story.

Not to thread-jack myself, but.  I have a WIP patch for v20 which =
separates the
code into {fe|be}-secure-openssl.c and {fe[be}-secure-libressl such that =
we can
start modernizing our OpenSSL code without breaking LibreSSL or risk =
ending up
with an impenetrable ifdef soup.  Will share shortly to get a discussion =
going
for how we want to deal with TLS support in 20 and onwards.

--
Daniel Gustafsson