The version number in XML documents

The XML Core WG solicits public feedback on making an erratum-level
change to XML 1.0, requiring that if a version number appears in the
XML declaration, that it must be "1.0".

Currently the version number can be almost any sequence of letters, digits,
and period, but XML processors are allowed to throw a fatal error if
the value is anything but "1.0".  With the proposed erratum, it will be
a fatal error to use anything but "1.0".

The intention of this proposal is to give XML 1.0 parsers a way to
reject XML 1.1 documents up front by reason of version incompatibility.

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-- 
John Cowan       http://www.ccil.org/~cowan        <>
        You tollerday donsk?  N.  You tolkatiff scowegian?  Nn.
        You spigotty anglease?  Nnn.  You phonio saxo?  Nnnn.
                Clear all so!  `Tis a Jute.... (Finnegans Wake 16.5)