Hi! I reviewed -13, -20, and the diffs between the two versions. I joined an vInterim at some point and the WG addressed all of my comments on -13. I found a couple of nits that I submitted via github (I didn't duplicate the nits Thomas found in his GENART review):
- https://github.com/ietf-tapswg/api-drafts/pull/1129
- https://github.com/ietf-tapswg/api-drafts/pull/1130

I could not find any new issues with this I-D.