python · vstinner · Mar 5, 2026 · Mar 4, 2026 · Mar 5, 2026 · Mar 5, 2026
diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst
@@ -2099,6 +2099,10 @@ are always available.  They are listed here in alphabetical order.
      Subclasses of :class:`!type` which don't override ``type.__new__`` may no
      longer use the one-argument form to get the type of an object.

+   .. versionchanged:: next
+
+      *dict* can now be a :class:`frozendict`.
+
 .. function:: vars()
              vars(object, /)


diff --git a/Doc/library/stdtypes.rst b/Doc/library/stdtypes.rst
@@ -2385,6 +2385,10 @@ expression support in the :mod:`re` module).
   the same position in *to*.  If there is a third argument, it must be a string,
   whose characters will be mapped to ``None`` in the result.

+   .. versionchanged:: next
+
+      *dict* can now be a :class:`frozendict`.
+

 .. method:: str.partition(sep, /)


@@ -211,6 +211,13 @@ For example::
    >>> a == b
    True

+The following standard library modules have been updated to accept
+:class:`!frozendict`: :mod:`copy`, :mod:`decimal`, :mod:`json`, :mod:`marshal`,
+:mod:`pickle`, :mod:`pprint` and :mod:`xml.etree.ElementTree`.
+
+:func:`eval` and :func:`exec` accept :class:`!frozendict` for *globals*, and
+:func:`type` and :meth:`str.maketrans` accept :class:`!frozendict` for *dict*.
+
 .. seealso:: :pep:`814` for the full specification and rationale.

 (Contributed by Victor Stinner and Donghee Na in :gh:`141510`.)