2.39.2 (unstable):

* SaxParser: Fix “double free or corruption” if a std::exception is thrown
  by a handler method.
  (Daniel Trebbien, Kjell Ahlstedt)
* Replace some (deprecated in C++11) std::auto_ptr by std::unique_ptr.
  There are still some auto_ptrs in header files bug replacing them would
  break ABI.
  (Kjell Ahlstedt) Bug #753123.