Re: [IANA #1416124] NEW PREFERENCE - subscribe-enhanced-get / expert review for draft-ietf-calext-subscription-upgrade (http-parameters)

• From: Martin Thomson <mt@lowentropy.net>
• Date: Mon, 07 Apr 2025 16:39:31 +0200
• To: "Julian F. Reschke" <julian.reschke@gmx.de>, "Amanda Baber via RT" <drafts-expert-review-comment@iana.org>
• Cc: calsify@ietf.org, ietf-http-wg@w3.org
• Message-Id: <722abfb2-59dc-4dcb-9747-e9aea2fb072c@app.fastmail.com>

On Sat, Apr 5, 2025, at 14:52, Julian Reschke wrote:
>> https://datatracker.ietf.org/doc/draft-ietf-calext-subscription-upgrade/
>
> I reviewed the draft, and I have doubts that this protocol extension is
> needed at all (and therefore, the new preferences). (Feedback from
> *this* WG appreciated)

I agree with Julian here.  A resource can produce delta updates based on an understanding of the content that a client has (signaled through ETag).  There are some somewhat interesting caching implications, but I understand that this protocol probably doesn't need to produce something that is fully cached up to the extent that might work.

Received on Monday, 7 April 2025 14:39:56 UTC