>> I think the XML 2.0 spec should have a 'Compatibility' section in it that
>> says if you want your XML 2.0 document to be valid XML 1.0, then take note
>> of the following ... . One of the things it would mention is comments.
> That's certainly worth considering. Perhaps there should be two
> levels? a basic level with no XML declaration that is XML 1.0
> compatible, and a level with<?xml version='2.0'> that is not?
>
I started trying to work out use cases for backwards compatibility (old
documents, new tools / old tools / new documents), and realized I don't
have enough experience (or patience?) to propose anything definitive or
thoroughly considered. Still I feel that the success of this whole
enterprise will very much hinge on getting the nuances of the
compatibility decisions just right, so smart people: please think deeply
about this!
-Mike Sokolov
