What's new in XML 1.1

  • Support for more Unicode characters. (supports future Unicode versions)

  • Character normalization (ie. an e followed by a combining accent acute can now be represented as é)

  • Some Unicode characters are now allowed but need to be escaped.

  • Namespace names are now defined as IRIs (Internationalized Resource Identifiers).

  • Prefixed namespaces can be undeclared (xmlns:pre="").

  • Problems: not backwards compatible, schema languages have not been updated to support these features.