2.35.1 (unstable):

* Handle attributes with default values correctly.
  (Kjell Ahlstedt) Bug #669635.
* Improved handling of entity references and processing instructions.
  (Kjell Ahlstedt) Bug #669481
* Parser: Throw more detailed error messages.
  (Kjell Ahlstedt) Bug #304020 (Virgile Devaux)
* Document: Make the Document(xmlDoc*) constructor protected.
  (Murray Cumming) Bug #668980 (A. Pignotti).