Section 2.8 Prolog and Document Type Declaration Production Rule
26 VersionNum together with the following note, which explains the
semantic of VersionNum as a decimal Number:
"Even though the VersionNum production matches any version number
of the form '1.x', XML 1.0 documents SHOULD NOT specify a version
number other than '1.0'." Greetings, Frank
That doesn't say anything about the semantics of the version number, it just gives some constraints on its value. It doesn't say what information it conveys: for all this sentence says, VersionNum tells you the number of phone calls made on an average day by the document author.
Michael Kay Saxonica
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