Setting $c->res->body to a filehandle after using $c->res->write or
$c->res->write_fh is no longer considered allowed, since we can't send
the filehandle to the underlying Plack handler. For now we will continue
-to support setting body to a simple value since
+to support setting body to a simple value since this is possible, but at
+some future release a choice to use streaming indicates that you will do
+so for the rest of the request.
=head2 VERSION 5.90053