Close #20563: Declare ipaddress API stable

Doc/whatsnew/3.4.rst

@@ -134,6 +134,7 @@ Significantly Improved Library Modules:
   handling <whatsnew_email_contentmanager>` (:issue:`18891`).
 * :mod:`plistlib` has a cleaned up interface and support for binary
   plist files (:issue:`14455`)
+* The :mod:`ipaddress` module API has been declared stable
 
 CPython implementation improvements:
 
@@ -840,6 +841,16 @@ which adds support for functions compiled with Cython. (Contributed
 by Stefan Behnel and Yury Selivanov in :issue:`17159`)
 
 
+ipaddress
+---------
+
+:mod:`ipaddress` was added to the standard library in Python 3.3 as a
+:term:`provisional API`. With the release of Python 3.4, this qualification
+has been removed: :mod:`ipaddress` is now considered a stable API, covered
+by the normal standard library requirements to maintain backwards
+compatibility.
+
+
 logging
 -------