Release Notes: Lots of improvements were made in the way XML is handled. The structure of NLPDocuments has been changed, though no DTD or Schema has been defined for it yet. The NLPDocument now extends org.jdom.Document rather than holding a Document object inside it, and many methods have been added to make it easy to retrieve and manipulate various kinds of elements of the document.
Release Notes: XmlUtils has been resurrected and works with JDOM. The unification classes and methodology were restructured. OpenNLP common now inherits the PerlHelp and BasicEnglishAffixes classes from OpenNLP Maxent. OpenNLP was freed of the com.sun.xml dependency. Minor changes to several interfaces were added.