Core and Builtins
-----------------
+- Int/Long unification is halfway complete. There are a few broken tests,
+ the 'long' built-in hasn't been removed yet, and literals with trailing
+ 'L' or 'l' are still recognized. Performance may be sub-optimal.
+
+- 'except E, V' must now be spelled as 'except E as V' and deletes V
+ at the end of the except clause; V must be a simple name.
+
- Added function annotations per PEP 3107.
- Moved intern() to sys.intern().