RE: clause 2.2

See also the suggestion I submitted today regarding clause 2.3 (cf E62),
where I suggest not to potentially make (reasonable) current documents
invalid,
but to have a "for compatibility" sentence instead. 

I think you misread the definition of "for compatibility".  As opposed to
"for interoperability", "for compatibility" is not a non-binding
recommendation that is to be obeyed only if you want to retain  

Ok, so I meant "for interoperability".
 
        /kent k