@Girgias I'm looking at the "Passing non-callable strings to the xml_set_*_handler() functions is now deprecated." part of the deprecation, in particular with respect to this: "This would also mean to unset a handler the value of null must be used instead of an empty string which is also currently allowed. "

It looks like there are no tests passing an empty string for the handler. And a quick test run also doesn't show a deprecation notice for an empty string as a callback: https://3v4l.org/AdVej/rfc#vgit.master

What am I missing ?