I've just published draft #2 of SRFI 251. It was submitted by Sergei Egorov, author of the SRFI.

Here are Sergei's comments on the draft:

Please consider these changes for the second draft:

Splicing requirement dropped; identifier visibility constraint added.

Examples and implementation changed accordingly.

Here is the commit summary:

Here's the diff:

https://github.com/scheme-requests-for-implementation/srfi-251/compare/draft-1..draft-2

Regards,

SRFI Editor