| From: | Jelte Fennema-Nio <me(at)jeltef(dot)nl> |
|---|---|
| To: | Jacob Champion <jacob(dot)champion(at)enterprisedb(dot)com> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Dave Cramer <davecramer(at)gmail(dot)com>, Peter Smith <smithpb2250(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Jacob Burroughs <jburroughs(at)instructure(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>, "Andrey M(dot) Borodin" <x4mmm(at)yandex-team(dot)ru>, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, Jeff Davis <pgsql(at)j-davis(dot)com>, Peter Eisentraut <peter(at)eisentraut(dot)org> |
| Subject: | Re: Add new protocol message to change GUCs for usage with future protocol-only GUCs |
| Date: | 2024-05-06 16:22:25 |
| Message-ID: | CAGECzQT8L4q6WVYNCyqds+9G3iMqq9yFpbEbbdCde=kvWACavw@mail.gmail.com |
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On Tue, 23 Apr 2024 at 19:39, Jacob Champion
<jacob(dot)champion(at)enterprisedb(dot)com> wrote:
>
> On Mon, Apr 22, 2024 at 2:20 PM Jelte Fennema-Nio <me(at)jeltef(dot)nl> wrote:
> > 1. I strongly believe minor protocol version bumps after the initial
> > 3.1 one can be made painless for clients/poolers (so the ones to
> > 3.2/3.3/etc). Similar to how TLS 1.3 can be safely introduced, and not
> > having to worry about breaking TLS 1.2 communication.
>
> Apologies for focusing on a single portion of your argument, but this
> claim in particular stuck out to me. To my understanding, IETF worried
> a _lot_ about breaking TLS 1.2 implementations with the TLS 1.3
> change, to the point that TLS 1.3 clients and servers advertise
> themselves as TLS 1.2 and sneak the actual version used into a TLS
> extension (roughly analogous to the _pq_ stuff). I vaguely recall that
> the engineering work done for that update was pretty far from
> painless.
My bad... I guess TLS 1.3 was a bad example, due to it changing the
handshake itself so significantly.
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