On Fri, 7 Mar 2025, Victor Zhou wrote:
John - Yes, I am aware of RFCs 8552 and 8553 and the IANA registry for DNS
Underscore Names that 8552 creates. Our intention is *not* to compete with
or replace the underscore naming scheme, but rather to provide a
complementary approach specifically focused on progressive adoption of new
RR types.

But we have forty years of history that tells us that "progressive adoption of new RR types" does not happen. Either a new RR is defined and people use it, or we repurpose TXT. There is nothing in between.

The SPF record is a good example of this. SPF was designed and implemented using TXT records. (They should have used a _spf prefix but by the time it got to the IETF, it was widely deployed and too late to change.) When RFC 4408 was nearly done, a handful of DNS people in the IETF insisted that we use a a different RRTYPE and wouldn't let us publish the RFC unless we added the SPF type. We knew nobody would use it but we shrugged our shoulders and added it. To nobody's surprise, people kept using the TXT record and the SPF record was eventually abandoned.

I encourage you to find something else to work on, because this one is a dead end.

Regards,
John Levine, jo...@taugh.com, Taughannock Networks, Trumansburg NY
Please consider the environment before reading this e-mail. https://jl.ly

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