I've just published draft #6 of SRFI 143.  It was submitted
by John Cowan, author of the SRFI.

  <https://srfi.schemers.org/srfi-143/>

Here's the diff:

  <https://github.com/scheme-requests-for-implementation/srfi-143/compare/2630700e83d99855548ff7b84bdd755ddddebac5...6c05d3e2082579153edd1cbd19409fc87d6db653>

Here are John's comments:

  In SRFI 143, fx= etc. have been changed to fx=? etc.
  fx+*/carry has been corrected to fx*/carry.

  This is not a call for finalization yet; I just wanted to
  get the changes in the *.html files visible to
  implementers.

Regards,

SRFI Editor