fwiw - this fixation with tags seems orthogonal to what is needed - which is 
that the
"changes since RFC xxx" section of the new document carefully explain the 
changes 
(whatever they are - replacements, additions, sidesteps, workarounds ....)

the readers can decide for themselves what to call the change - 

I'd just stick with "updates" and require the full details

Scott

> On Jul 7, 2026, at 12:38 PM, Mirja Kuehlewind (IETF) 
> <[email protected]> wrote:
> 
> The discussion on which tag applies would be at least based on something 
> written and consensus based and not just on differing strong opinions about 
> how to do it right. That should make the discussion easier and also create 
> less of them. That’s the goal! Maybe it wouldn’t avoid it entirely but I 
> don’t think that a good reason to not do it as I don’t think there is a 
> perfect solution (and probably there don’t need to be one; sometimes you 
> simply need to have a discussion and make a decision).
> 
> Having some potentially confusing tags on old RFCs (that could be revised if 
> needed) doesn’t seem to be worse than what we have right now: one tag that is 
> not defined at all and a mismatch of use and interpretation as everybody 
> makes up their own requirements.
> 
>> On 7. Jul 2026, at 17:02, Eric Rescorla <[email protected]> wrote:
>> 
>> 
>> 
>> On Tue, Jul 7, 2026 at 7:54 AM Michael Richardson <[email protected]> 
>> wrote:
>> 
>> Mirja Kuehlewind \(IETF\) <[email protected]> wrote:
>> 
>> Agreed!
>> I think that it would be brilliant if an AD review told the WG:
>>   "Yeah, that document is not an Updates-123, it's an Updates-545, right?"
>> 
>> WG: Oh yeah, we didn't change our meta-data as our I-D evolved into being
>>     better at interoperating with old thing FOO.
>>  This seems like the optimistic view. The pessimistic view is that it will 
>> usher
>> in a whole new round of arguments about whether it should be Updates-123 or
>> Updates-545.
>>   
>>     > Also my question is what’s the harm I trying it. If it doesn’t help, we
>>     > stop it again. However, I think there is a chance to at least improve
>>     > the situation even though we might not fix all issues entirely.
>> 
>> +1
>> 
>> In addition to the concern above, namely creating new arguments about
>> which tag applies, if it turns out not to work, we end up with a bunch of
>> confusing and no-longer-used tags in perpetuity.
>> 
>> -Ekr
>> 
>> 
> 
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