that happen, 'unhandled-file-name-directory' now defaults to calling
'file-name-as-directory'.
+** The URL package now insists on sending only unibyte strings to server
+This means packages that use URL cannot bind `url-request-data' to
+multibyte strings. If non-ASCII characters should be part of the URL
+payload, then `url-request-data' should be encoded to become a unibyte
+string.
+
\f
* Lisp Changes in Emacs 25.1