I've just published draft #3 of SRFI 217. It was submitted by Wolfgang Corcoran-Mathe, co-author of the SRFI.
Here are Wolfgang's comments on the draft:
[These are] a few small final-touch changes to SRFI 217.
The only change affecting the document is the deletion of iset-iota, [which] we've decided is of limited utility. I think we can keep the last-call deadline of 2020-02-10 in place.
Here is the commit summary:
Here's the diff: