This is another review from the DNS Directorate. 
The latest version has improved greatly since the last reviewed version (18). 

Overall there has lots of great updates to this document since my review of
the -09 version, and Mr. Blacka's review of the -18 version. 

A comment from the previous review had a comment on terminology and background
taking time to get an understanding of, and I agree with this, but feel the
authors are working through those. 

One general comment is the terminology section mentions three different RFCs
on DRIP. That is great and useful - some non binding suggestions I've seen elsewhere
would be an appendix of terms used and links to the three RFCs.  Maybe I'm 
overthinking this as trying to learn the DRIP language. 

The document discusses a new HHIT and BRID DNS Resource Record Types.  
The authors should inlcude an IANA considerations section requesting the creation of 
these RR Type.  

(This seems to be a holdover from my review of -09)

Before I sign off on this, I'd like to see the RR Types approved, and something
working  in a zone file. 

The CBOR wire format is a new thing for this review also.  
The authors have stated they are getting CBOR expert review, but I have not found that. 

Also, has anyone peformed a simple implemntation example for these record formats 
(DNS lookup -> DRIP data)? 
Since the RR Types are not created, even TXT records would work (yes!)

Since the HHIT record examples have RDATA > 256 characters, 
as a good proof of concept to see this in a zone file.