I've just published draft #3 of SRFI 207. It was submitted by Daphne Preston-Kendal, author of the SRFI.
Here are Daphne's comments on the draft:
procedure library and a minor correction to the description of the notation
Here is the commit summary:
Here's the diff:
https://github.com/scheme-requests-for-implementation/srfi-207/compare/draft-2..draft-3
Regards,
SRFI Editor