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-rw-r--r--Doc/whatsnew/3.6.rst4
1 files changed, 3 insertions, 1 deletions
diff --git a/Doc/whatsnew/3.6.rst b/Doc/whatsnew/3.6.rst
index a150d9d1f7..e14125afb4 100644
--- a/Doc/whatsnew/3.6.rst
+++ b/Doc/whatsnew/3.6.rst
@@ -422,7 +422,9 @@ Some smaller changes made to the core Python language are:
to have this new dict implementation in the language for a few
releases before changing the language spec to mandate
order-preserving semantics for all current and future Python
- implementations).
+ implementations; this also helps preserve backwards-compatibility
+ with older versions of the language where random iteration order is
+ still in effect, e.g. Python 3.5).
(Contributed by INADA Naoki in :issue:`27350`. Idea
`originally suggested by Raymond Hettinger
<https://mail.python.org/pipermail/python-dev/2012-December/123028.html>`_.)