Features added
--------------
+* Access to non-cdef module globals and Python object attributes is faster.
+
+* ``Py_UNICODE*`` coerces from and to Python unicode strings. This is
+ helpful when talking to Windows APIs, which use compatible wchar_t
+ arrays for strings. Note that the ``Py_UNICODE`` type is otherwise
+ deprecated as of CPython 3.3.
+
* ``isinstance(obj, basestring)`` is optimised. In Python 3 it only tests
for instances of ``str`` (i.e. Py2 ``unicode``).