.. bpo: 31641
.. date: 2017-10-03-01-05-11
.. nonce: vlQEq5
.. release date: 2017-10-03
.. section: Library

Re-allow arbitrary iterables in `concurrent.futures.as_completed()`. Fixes
regression in 3.6.3rc1.

..

.. bpo: 31662
.. date: 2017-10-03-01-06-24
.. nonce: 8l2jEz
.. section: Build

Fix typos in Windows ``uploadrelease.bat`` script. Fix Windows Doc build
issues in ``Doc/make.bat``.

..

.. bpo: 31423
.. date: 2017-10-03-01-01-52
.. nonce: uKvPYA
.. section: Build

Fix building the PDF documentation with newer versions of Sphinx.
