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[3.9] bpo-37207: Update whatsnews for 3.9 (GH-21337) #21347

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[3.9] bpo-37207: Update whatsnews for 3.9 (GH-21337) #21347

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4 changes: 4 additions & 0 deletions Doc/whatsnew/3.9.rst
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Expand Up @@ -685,6 +685,10 @@ in nanoseconds. The benchmarks were measured on an
running the macOS 64-bit builds found at
`python.org <https://www.python.org/downloads/mac-osx/>`_.

* A number of Python builtins (:class:`range`, :class:`tuple`, :class:`set`, :class:`frozenset`, :class:`list`, :class:`dict`)
are now sped up by using :pep:`590` vectorcall protocol.
(Contributed by Dong-hee Na, Mark Shannon, Jeroen Demeyer and Petr Viktorin in :issue:`37207`.)


Deprecated
==========
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