On 2020-06-02 11:42 -0700, Arthur A. Gleckler wrote:
> I've just published draft #4 of SRFI 189
> <https://srfi.schemers.org/srfi-189/>. It was submitted by John Cowan,
> co-author of the SRFI.

I'm confused.  It seems that Draft #4 was published on May 12:

https://srfi-email.schemers.org/srfi-189/msg/14075592/

> Here is the commit summary:
>
>    - fold functions accept all values plus nil
>    - Implement Draft #3 of SRFI 189 (multiple values).
>    - Remove maybe-contains? and either-contains?.
>    - clarified -sequence operations
>    - maybe->list mutation is an error
>    - Update -sequence functions.
>    - Remove tests for -contains procedures.
>    - Update test sets: predicates, accessors, join and bind.
>    - Delete "obj" argument in either-remove and -filter.
>    - Update test sets: sequence operations, conversions.
>    - Fix arity error in either->lisp-values.
>    - Update test set for map, fold, unfold.
>    - Return unspecified value from -for-each procedures.
>    - Fix typos in definition of maybe-if.
>    - Improve the bargain basement SRFI 78 implementation.
>    - Comment cleanup and improvement.
>    - Add tests for `maybe-if'.
>    - Refactor some tests for readability.
>    - style typos
>    - Lefts now contain exactly one value
>    - Show keywords.
>    - Use HTML links on HTML pages.
>    - Fix typo. Publish fourth draft.

These changes have been part of the SRFI 189 repository since
May 17th (https://srfi-email.schemers.org/srfi-189/msg/14117692/).

Regards,

--
Wolfgang Corcoran-Mathe  <xxxxxx@sigwinch.xyz>

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