Hm, we are talking about XML namespace names, not DTD URIs.
XML processors are not supposed to resolve them, so it seems strange to
insert requirements for clients that do so.
Welcome as this is, why is this I-D limited to XML namespace names? What
XML Schema names?
Pardon my ignorance, but what is an XML Schema name? I
And is this not an update to RFC3688?
I'd consider it an alternative approach.
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