Refs -- Forwardported 1.11.2 release note.
@@ -29,3 +29,6 @@ Bugfixes
* Fixed a regression where ``Model._state.adding`` wasn't set correctly on
multi-table inheritance parent models after saving a child model
(:ticket:`28210`).
+
+* Allowed ``DjangoJSONEncoder`` to serialize
+ ``django.utils.deprecation.CallableBool`` (:ticket:`28230`).
