I've just published draft #4 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 the draft:

  SRFI 152 is code-complete and passing all tests.

  There are now tests for the optional procedures as well;
  Chibi passes on all the procedures it implements.  Someone
  should test it on Sagittarius or Larceny or another
  R6RS/R7RS implementation.

  In addition, several procedures have had their argument
  order changed from SRFI 1 type to SRFI 13 type.

Here's the diff:

  <https://github.com/scheme-requests-for-implementation/srfi-152/compare/0ab88e97a49167df44c82246399d2f89864c197c...bacab885617d341b73a4c893fc027ce0797f608d>

Regards,

SRFI Editor