bpo-41824: Add versionadded for typing.ForwardRef docs (#24224)

Fidget-Spinner · web-flow · commit da21f7b6e1fd · 2021-02-08T17:58:50.000-08:00
diff --git a/Doc/library/typing.rst b/Doc/library/typing.rst
@@ -1950,6 +1950,8 @@ Introspection helpers
    ``list[ForwardRef("SomeClass")]``.  This class should not be instantiated by
    a user, but may be used by introspection tools.
 
+   .. versionadded:: 3.7.4
+
 Constant
 --------
 
