Title: Add Chapter about Resteasy default behaviour change Describe the issue: 1) by default xml documents with DTD are not allowed -> setting resteasy.document.secure.disableDTDs to false in web.xml is needed to allow it. 2) by default secure processing is set to true -> setting resteasy.document.secure.processing.feature to false in web.xml is needed to disable it. Xerces 2.9.1.redhat-6 included in EAP 6.4.0 doesn't support Max atributtes limit. This needs to be mentioned in release notes. Suggestions for improvement: Additional information: