See also http://pvp.haskell.org/faq

0.3.1.0

• New xmlns_elem_wellformed predicate for verifying namespace-wellformedness
• New qnameToText and qnameFromText conversion functions
• Explicitly declare SafeHaskell levels; ensure all public modules are "Safe"
• Fix pure exception bypassing proper failure reporting
• Fix attribute uniqueness violations not being detected
• Fix too lax validation of PITargets
• Improve too lax validation of namespace names
• Fix too lax validation of entity references

0.3.0.0

• New SerializeXMLOptions(serializeSortAttributes) option
• Add new `Serializexmlroot
• Major refactoring of Text.XML.Cursor API
• un-Maybe the QName(qURI) field