Re: Removing HTTP/2 upgrade

Hi Cory,

On 17/02/2021 18:23, Cory Benfield wrote:
> In the most recent interim we discussed removing the HTTP/2 plaintext
> upgrade mechanism as part of h2bis. This would be a divergence from
> the original specification, but HTTP/2 plaintext upgrade was never
> deployed by a meaningful number of client implementations.
> Prior-knowledge is substantially more common, and server implementers
> have noted that they can just as easily detect the prior-knowledge
> upgrade path as they can perform the HTTP/2 plaintext upgrade.
>
> To that end I've proposed draft text that would remove the mechanism
> at https://github.com/httpwg/http2-spec/pull/820. I'd like to confirm
> that the working group has come to consensus on this issue, and to get
> any feedback on the specific change.

Just a small question about removing registration of the HTTP2-Settings 
header field: would it be better to mark it obsolete in the IANA 
registry instead?

Best Regards,

Alexey