I've just published draft #6 of SRFI 163. It was submitted by Per Bothner, author of the SRFI.

<https://srfi.schemers.org/srfi-163/>

Here are Per's comments on the draft:

I ended up changing the wording a bit more that originally suggested, plus I changed the term 'uniform-tag' to 'type-tag'.

I also fixed two small typos, and updated the copyright year.

So it might make sense to extend the last call a few more days.

Per his suggestion, I'm extending the last-call period by one week. Please send your feedback before 2019/1/18.

Here's the diff:

<https://github.com/scheme-requests-for-implementation/srfi-163/compare/82b2bfb930de416ad2a78adf562ea756dc8fec3c...e72820b2e111f7164456ecd76e1552f5ae55fe51>

Regards,

SRFI Editor