I do not think you have consensus for that change to WebRTC - it was discussed 
extensively. I would just leave things as they are. 


> On Oct 2, 2019, at 8:45 AM, John Mattsson 
> <john.mattsson=40ericsson....@dmarc.ietf.org> wrote:
> 
> Hi,
> 
> Sean Turner wrote:
>> "You can change the text, but I do not believe it will change the 
>> implementations."
> 
> I would much rather have a future proof RFC that forbids negotiation of DTLS 
> 1.0 with the knowledge that some implementations will temporary violate that, 
> than having an RFC that long time in the future allows negotiation and use of 
> DTLS 1.0.
> 
> 
> Eric Rescorla wrote:
>> "result of some pretty extensive discussion and compromising in rtcweb"
> 
> That does not surprise me, but I think that is part of the problem. These 
> things should mainly be decided by the TLS working group. 
> Draft-ietf-rtcweb-security-arch mandated DTLS 1.0 until Nov 2018. That is 
> half a year after the "Deprecating TLSv1.0 and TLSv1.1" draft was submitted 
> and almost 7 years after DTLS 1.0 was made obsolete.
> 
> 
> No matter what is done in this particular case, I think the important thing 
> to discuss is how we avoid drafts that only support obsolete versions of 
> TLS/DTLS in the future. According to my understanding of the comments in the 
> thread "Lessons learned from TLS 1.0 and TLS 1.1 deprecation", both me, 
> Kathleen Moriarty, and Martin Thomson understands obsoleted as:
> 
> "New implementations and deployments MUST include support of the new version".
> 
> If this is not clearly defined somewhere, I think it needs to be specified. 
> If it is specified somewhere, IETF needs to make sure to follow apply it.
> 
> Cheers,
> John 
> 
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