John Cowan, co-author of SRFI 137, Minimal Unique Types, has
asked me to announce "last call" for this SRFI.  He believes
that it is ready for finalization, but would like to give
reviewers one last chance to submit corrections and feedback
before we finalize it.

  <srfi.schemers.org/srfi-137>

If you're interested in this SRFI, please give your feedback
via the SRFI 137 mailing list before Sat 3 Sep 2016.  After
that, assuming that no major revisions are required, we will
declare it final.

This "last call" period is an experimental addition to the
SRFI process.  I welcome your feedback on the idea.  (Please
send that feedback to srfi-editors at srfi.schemers.org.)

Regards,

SRFI Editor