I've just published draft #2 of SRFI 152.  It was submitted
by John Cowan, author of the SRFI.

<https://srfi.schemers.org/srfi-152/>

Here are John's comments on this draft:

  I have fixed many errors in SRFI 152 and added some new
  procedures as well as some new details about the
  implementation plan.

  The implementation [is] are unchanged, so now even more
  deficient than before.  Hopefully I can fix this soon.

Here's the diff:

<https://github.com/scheme-requests-for-implementation/srfi-152/compare/04c2814231281af7fd2ca1878fcded5cfae4804a...5b5d57af73810c34ca0007e32a0e1424cdf7a3cb>

Regards,

SRFI Editor