Merge pull request #680 from bckohan/changelog

update changelog

Author: bckohan

docs/changelog.rst

@@ -4,6 +4,7 @@ Changelog
 v4.3.0 (202X-XX-XX)
 -------------------
 
+* Fixed `Caching in inheritance accessor functions <https://github.com/jazzband/django-polymorphic/pull/510>`_
 * Fixed `Foreign key resolves to parent class when using abstract models <https://github.com/jazzband/django-polymorphic/issues/437>`_
 * Fixed `Support Q expressions that contain subquery expressions <https://github.com/jazzband/django-polymorphic/pull/572>`_