All changes from the two beta versions preceding this event are included and the interface is updated. If you remember what the previous validator interface looks like, now you can compare it with the new one .
There are also a number of features.
Revised main UI. Cleaner design. Improved tabbing between validation methods. Adding toggled option visibility Bug Fix: Fixing transcoding issues, encoding of source display Bug Fix: For XML document types, not reporting xmlns: * attributes as an error New feature: error context message Bug Fix: Fixed fatal error display in SOAP API Bug Fix: Fixed line number Usability: more “usable fatal error displays, removed“ reset form "button, rewordings, error message explanations ... Bug Fix: Fixed outline for non-xml document types New Feature: Added support for XHTML + RDFa If you’re trying to find out what you’re looking for It is faster and more reliable Improved interface for better usability New feature: automatic cleanup of markup (with Tidy) Validation of XML-based languages Back by popular demand: document outline feature Internet Media Type (MIME type) New feature: for XML documents, checking that the xmlns is present, and properly set. New feature: grouped messages New feature: Direct Input validation can check full documents AND HTML fragments Added support for SMIL 2.1, XHTML Basic 1.1 Bug fixes