* :func:`signal.signal` and :func:`signal.siginterrupt` raise an OSError,
instead of a RuntimeError: OSError has an errno attribute.
+
+smtpd
+-----
+
+* The :mod:`smtpd` module now supports :rfc:`5321` (extended SMTP) and :rfc:`1870`
+ (size extension). Per the standard, these extensions are enabled if and only
+ if the client initiates the session with an ``EHLO`` command.
+
+ (Initial ``ELHO`` support by Alberto Trevino. Size extension by Juhana
+ Jauhiainen. Substantial additional work on the patch contributed by Michele
+ Orrù and Dan Boswell. :issue:`8739`)
+
+
smtplib
-------
-The :class:`~smtplib.SMTP_SSL` constructor and the :meth:`~smtplib.SMTP.starttls`
-method now accept an SSLContext parameter to control parameters of the secure
-channel.
+* The :class:`~smtplib.SMTP_SSL` constructor and the :meth:`~smtplib.SMTP.starttls`
+ method now accept an SSLContext parameter to control parameters of the secure
+ channel.
-(Contributed by Kasun Herath in :issue:`8809`)
+ (Contributed by Kasun Herath in :issue:`8809`)
socket
(implemented in :issue:`14040`.)
-Other issues
-------------
+Command Line Switch Changes
+---------------------------
+
+* The -Q command-line flag and related artifacts have been removed. Code
+ checking sys.flags.division_warning will need updating.
+
+ (:issue:`10998`, contributed by Éric Araujo.)
-.. Issue #11591: When :program:`python` was started with :option:`-S`,
- ``import site`` will not add site-specific paths to the module search
- paths. In previous versions, it did. See changeset for doc changes in
- various files. Contributed by Carl Meyer with editions by Éric Araujo.
+* When :program:`python` is started with :option:`-S`, ``import site``
+ will no longer add site-specific paths to the module search paths. In
+ previous versions, it did.
-.. Issue #10998: the -Q command-line flag and related artifacts have been
- removed. Code checking sys.flags.division_warning will need updating.
- Contributed by Éric Araujo.
+ (:issue:`11591`, contributed by Carl Meyer with editions by Éric Araujo.)