[UR-WG] LAST CALL - Usage Record Format Recommendation - Version 1

[Donal K. Fellows]

Gilbert Netzer wrote:
> So to sum up I think that the XML namespace could be used to mark the 
> version of a UR.

I agree. The point isn't that the namespace changes as such. Instead,
the qualified name of the outermost element changes, and it is that
which makes the records completely distinguishable. Version attributes
are only useful in those cases where the content is changing in some way
that isn't covered by existing extensibility, but the outer tag with the
version number is *not* changing, and their usefulness is because they
allow early rejection of the document (or backend parser adjustment so
that the doc can be parsed smoothly).

Donal.