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What are the differences between versions 1.0 and 1.1 of the XML namspaces recommendation?

April 26, 2017differences recommendation versions XML

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What are the differences between versions 1.0 and 1.1 of the XML namspaces recommendation?

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There are only two subtantial differences between XML namespaces 1.0 and XML namespaces 1.1: • Version 1.1 adds a way to undeclare prefixes. For more information, see question 4.7. • Version 1.1 uses IRI (Internationalized Resource Identifiers) references instead of URI references. Basically, URIs are restricted to a subset of ASCII characters, while IRIs allow much broader use of Unicode characters. For complete details, see Internationalized Resource Identifiers. NOTE: As of this writing (January, 2007), Namespaces in XML 1.1 does not appear to be widely implemented. Before using it, check the software you are using to see if it is supported. And if you are exchanging documents with others, make sure their software supports it as well.