> Well, this depends on your point of view. If a project which
> actually developed the library fails to introduce support to the
> new version of the library - for an external observer this
> suggests that there is something wrong with the new version.

FUD 'suggestions' simply aren't needed.

The Exim project didn't develop the pcre2 library ... Philip Hazel did
(https://www.pcre.org/current/doc/html/pcre2.html#SEC4), as a separate
project.

Exim's last (? something newer out there?) rationale for not adopting it
was simply,

https://bugs.exim.org/show_bug.cgi?id=1878

"The original PCRE support is not broken.

If it is going to go away, then adding PCRE2 support becomes much more
important, but I've seen nobody saying that yet."


Also of note,

https://pcre.org/pcre.txt

"The old libraries (now called PCRE1) are still being maintained for bug
fixes, but there will be no new development. New projects are
advised to use the new PCRE2 libraries."
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