Merged solution for #12036 from 3.2
diff --git a/Doc/library/configparser.rst b/Doc/library/configparser.rst
index 1a88bbd..5b20bb7 100644
--- a/Doc/library/configparser.rst
+++ b/Doc/library/configparser.rst
@@ -1064,6 +1064,11 @@
given *section*. Optional arguments have the same meaning as for the
:meth:`get` method.
+ .. versionchanged:: 3.2
+
+ Items present in *vars* no longer appear in the result. The previous
+ behaviour mixed actual parser options with variables provided for
+ interpolation.
.. method:: set(section, option, value)