whatsnew updates for smtplib and collections.Counter.
diff --git a/Doc/whatsnew/3.3.rst b/Doc/whatsnew/3.3.rst
index 7dee076..0f13088 100644
--- a/Doc/whatsnew/3.3.rst
+++ b/Doc/whatsnew/3.3.rst
@@ -1005,20 +1005,20 @@
-----------
Addition of a new :class:`~collections.ChainMap` class to allow treating a
-number of mappings as a single unit.
-
-(Written by Raymond Hettinger for :issue:`11089`, made public in
-:issue:`11297`)
+number of mappings as a single unit. (Written by Raymond Hettinger for
+:issue:`11089`, made public in :issue:`11297`)
The abstract base classes have been moved in a new :mod:`collections.abc`
module, to better differentiate between the abstract and the concrete
collections classes. Aliases for ABCs are still present in the
-:mod:`collections` module to preserve existing imports.
-
-(:issue:`11085`)
+:mod:`collections` module to preserve existing imports. (:issue:`11085`)
.. XXX addition of __slots__ to ABCs not recorded here: internal detail
+The :class:`~collections.Counter` class now supports the unary ``+`` and ``-``
+operators, as well as the in-place operators ``+=``, ``-=``, ``|=``, and
+``&=``. (Contributed by Raymond Hettinger in :issue:`13121`.)
+
contextlib
----------
@@ -1806,6 +1806,12 @@
smtplib
-------
+The :class:`~smtplib.SMTP`, :class:`~smtplib.SMTP_SSL`, and
+:class:`~smtplib.LMTP` classes now accept a ``source_address`` keyword argument
+to specify the ``(host, port)`` to use as the source address in the bind call
+when creating the outgoing socket. (Contributed by Paulo Scardine in
+:issue:`11281`.)
+
:class:`~smtplib.SMTP` now supports the context manager protocol, allowing an
``SMTP`` instance to be used in a ``with`` statement. (Contributed
by Giampaolo Rodolà in :issue:`11289`.)