I have been selected as the DNS Directorate reviewer for this draft. The DNS
Directorate seeks to review all DNS or DNS-related drafts as they pass through
IETF last call and IESG review, and sometimes on special request. The purpose
of the review is to provide assistance to the ADs. For more information about
the DNS Directorate, please see https://wiki.ietf.org/en/group/dnsdir

This draft does not bring new points of consideration for the DNS, as it just
improves a previous RFC, not being itself related to the DNS.
The only parts explicitly referencing DNS and resource
record types (section 5.3) is merely a reference to RFC7043,
which is out of scope of this review.

I also did not find anything else non-DNS related to be worth mentioning,
so the document feels READY to me.