I've just published draft #5 of SRFI 234. It was submitted by Arne Babenhauserheide, co-author of the SRFI.

Because so many people have participated in the preparation and discussion of this SRFI, Arne has asked me to ask if there is anyone who would like to be listed in the Acknowledgments.  Please speak up!

Here is the commit summary:

• Always require returning exactly three values.
• Split topological-sort into t…s… (single) and t…s…/details (values)
• Add further authors, as asked by Shiro Kawai.
• Add SPDX license metadata.
• Update abstract.
• Remove Arvydas per his [earlier] request.
  

Here's the diff:

https://github.com/scheme-requests-for-implementation/srfi-234/compare/draft-4..draft-5

Arne 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.

In particular, I appeal to anyone reading this to try the sample implementation, run the tests, and send feedback about your results.

If you're interested in this SRFI, please give your feedback via the SRFI 234 mailing list before 2024-09-23. After that, assuming that no major revisions are required, we will declare it final. It is important that we get your feedback before 2024-09-23. If that deadline is too soon for you, but you would like to contribute, please let me know so that I can extend the last-call period.

Regards,

SRFI Editor