First of all, I would like to apologize for the long delay in reviewing it.

In particular, I focused on the new text by using rfcdiff as suggested. The text captures the current state of the API in a good way.
Please double check that all acronyms are resolved on their first use in the final text (when all text marked for removal is actually removed).

I found two typos:
* A.5. 1st paragpraph
  trough -> through
* A.6 7th paragraph
  use the relevent port -> use the relevant port

Best regards
Michael