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Re: Our ALPN protocol IDs

From: Mark Nottingham <mnot@mnot.net>
Date: Sat, 7 Dec 2013 14:53:59 +1100
Cc: Carsten Bormann <cabo@tzi.org>, Martin Thomson <martin.thomson@gmail.com>, HTTP Working Group <ietf-http-wg@w3.org>
Message-Id: <63647967-A5A5-4340-B3A3-8BF4B0DDEE39@mnot.net>
To: Nicolas Mailhot <nicolas.mailhot@laposte.net>

On 6 Dec 2013, at 7:55 pm, Nicolas Mailhot <nicolas.mailhot@laposte.net> wrote:

> 
> Le Ven 6 décembre 2013 01:04, Mark Nottingham a écrit :
> 
>> If changes are backwards-compatible, there's no need to change the
>> protocol identifier on the wire; if they aren't, it's not a minor
>> revision.
> 
> If you don't advertise minor you give up on adding features in a minor
> version. Only knowing the major version means you have to restrict
> yourself to using what was available in the .0 version.

No, it must means you don’t indicate the addition of new features to a linear minor version number — which we don’t (and can’t) use anyway in HTTP/1 (because lots of software already rejects HTTP/1.2 outright).

Deciding not to link new features into a new version != disallowing new features.


--
Mark Nottingham   http://www.mnot.net/
Received on Saturday, 7 December 2013 03:54:31 UTC

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