Core and Builtins
-----------------
+ - Issue #7833: Extension modules built using distutils on Windows will no
+ longer include a "manifest" to prevent them failing at import time in some
+ embedded situations.
+
+- PEP 3151 / issue #12555: reworking the OS and IO exception hierarchy.
+
+- Add internal API for static strings (_Py_identifier et al.).
+
- Issue #13063: the Windows error ERROR_NO_DATA (numbered 232 and described
as "The pipe is being closed") is now mapped to POSIX errno EPIPE
(previously EINVAL).