Merge #23722 from 3.6

1 files changed, 13 insertions, 0 deletions

diff --git a/Misc/NEWS b/Misc/NEWS
index d9b7ed6..12021f6 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,11 @@ What's New in Python 3.7.0 alpha 1
 Core and Builtins
 -----------------
 
+- Issue #23722: Rather than silently producing a class that doesn't support
+  zero-argument ``super()`` in methods, failing to pass the new
+  ``__classcell__`` namespace entry up to ``type.__new__`` now results in a
+  ``DeprecationWarning`` and a class that supports zero-argument ``super()``.
+
 - Issue #28797: Modifying the class __dict__ inside the __set_name__ method of
   a descriptor that is used inside that class no longer prevents calling the
   __set_name__ method of other descriptors.
@@ -30,6 +35,14 @@ Core and Builtins
   non-encodable characters (non-ASCII for the ASCII codec, characters out
   of the U+0000-U+00FF range for Latin1).
 
+Documentation
+-------------
+
+- Issue #23722: The data model reference and the porting section in the
+  3.6 What's New guide now cover the additional ``__classcell__`` handling
+  needed for custom metaclasses to fully support PEP 487 and zero-argument
+  ``super()``.
+
 - Issue #28731: Optimize _PyDict_NewPresized() to create correct size dict.
   Improve speed of dict literal with constant keys up to 30%.