Viktor Dukhovni wrote:
> Finally, it is still unclear why any of this is an issue for this work.

I agree that this is a valid, if somewhat uniformative, way to approach the
issue. That's why I mentioned removing all of it as an option.

But, the draft as it stands still has Section 2, and the later IDNA text.
https://www.ietf.org/archive/id/draft-ietf-uta-rfc6125bis-10.html#name-identifying-application-ser

You can't follow that advice and get the interoperability people expect
from the IETF. As you wrote yourself, Postfix just used a ubiquitous
library and ended up with UTS-46, without really having an opinion on the
matter. That says it all to me.

thanks,
Rob

On Sat, Jan 28, 2023 at 10:12 AM Rob Sayre <say...@gmail.com> wrote:

> Hi,
>
> Here's an edit, just to start:
>
> "An "internationalized domain name", i.e., a DNS domain name that includes
> at least one label containing appropriately encoded Unicode code points
> outside the traditional US-ASCII range and conforming to the processing and
> validity checks specified for "IDNA2008" in [IDNA-DEFS]"
>
> I think this reference should be to UTS-46, since it allows more names.
> (U+2615 ( ☕ ) HOT BEVERAGE is valid in UTS-46 but not IDNA2008).
>
> Later on, the draft says "there are in practice at least two primary
> approaches to internationalized domain names", but it sure seems like the
> Internet has settled on UTS-46, a superset of IDNA2008. I think the draft
> should say that. I can offer specific text here, but this will require a
> big rewrite of the paragraph, and I think the editors will have their own
> ideas.
>
> So far we've found Chrome and Postfix, just to name a few examples, using
> UTS-46. I think the draft is overstating the influence of IDNA2008. After
> all, it's 14-15 years old, and things have changed. But, as Orie notes,
> there are still bugs.
>
> thanks,
> Rob
>
> On Fri, Jan 27, 2023 at 6:24 PM Orie Steele <orie@transmute.industries>
> wrote:
>
>> Possibly relevant, not sure if helpful:
>>
>> - https://github.com/whatwg/url/issues/341
>> - https://github.com/whatwg/url/issues/733
>>
>>
>>
>> On Fri, Jan 27, 2023, 7:26 PM Rob Sayre <say...@gmail.com> wrote:
>>
>>> On Fri, Jan 27, 2023 at 5:16 PM Peter Saint-Andre <stpe...@stpeter.im>
>>> wrote:
>>>
>>>> > That is what works.
>>>>
>>>> Well, IDNA2008 works for many applications and UTS-46 works for many
>>>> other applications. I'm not as certain as you are that one of these
>>>> technologies works and the other does not. Can you produce evidence
>>>> that, by implication, IDNA2008 does not work? What problems does it not
>>>> solve?
>>>>
>>>
>>> That's the dispute, right? UTS-46 allows more names than IDNA2008, so it
>>> will be more interoperable, and it is popular.
>>>
>>> If you look at this table, that seems correct:
>>>
>>> https://www.unicode.org/reports/tr46/#Table_IDNA_Comparisons
>>>
>>> I am not a fan of works of fiction in standards, and I think UTS-46 is
>>> closer to the truth here.
>>>
>>> thanks,
>>> Rob
>>> _______________________________________________
>>> Uta mailing list
>>> Uta@ietf.org
>>> https://www.ietf.org/mailman/listinfo/uta
>>>
>>
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