I've just published draft #2 of SRFI 250 <https://srfi.schemers.org/srfi-250/>. It was submitted by John Cowan, author of the SRFI.
*I hadn't been able to reach John for a long time, and so had withdrawn this SRFI. I'm happy to say that John is back. Since no one took over this SRFI, but John has a new draft, I've returned this SRFI to draft status, and am publishing the second draft.* Here are John's comments on the draft: Prune! returns number of associations removed (needs implementation) > Clarify that set! does not change the ordering. Here is the commit summary: - Withdraw. - initial second draft - copy edits - Eliminate redirect. - Move back to draft status. Publish second draft. Here's the diff: https://github.com/scheme-requests-for-implementation/srfi-250/compare/draft-1..draft-2 Regards, SRFI Editor