Release Notes: The major new feature of XMLUnit for Java 1.2 is an alternative XML validation subsystem built on top of JAXP 1.3 which supports validation against alternative XML Schema languages (if your JAXP implementation supports them) and validation of the Schema definition itself. In addition, all known issues of XMLUnit 1.1 have been fixed.
Release Notes: This is a version of XMLUnit.NET that has been compiled against NUnit 2.4 and should work on any modern version of Mono as well as all Microsoft .NET frameworks (only tested on 1.1 and above, though). Apart from being compiled against a more modern version of NUnit, only a few deprecation warnings have been fixed when compared to XMLUnit.NET 0.3. No features have been added, and no bugs have been fixed (there haven't been any bug reports anyway). Unfortunately, no documentation has been added either.