Added new extension elements to the Faces XML schema. Please see Section 1.1 "XML Schema Definition".
Also see https://javaserverfaces-spec-public.dev.java.net/issues/show_bug.cgi?id=54
Low priority new feature – no plans to implement in the near future.
I don't think marking this as resolved is the right resolution.
I'd suggest we leave it open at minimal priority.
as long as we don't need these extensions there is no need to implement them.