On Sat, 29 Sep 2018, 23:19 John Shahid, <jvshahid@gmail.com> wrote:

>
> That is very useful thanks.  I wanted to know the minimum version of
> Emacs that introduced `string-join' recently and had to grep for it in
> the NEWS file.  Although grepping isn't that hard, having that
> information available on the help page is useful imho.
>

A declaration would make more sense. Like (declare (introduced-in "24.0"))

>