diff --git a/devel/release.md b/devel/release.md
index 373f0283a8..f438889404 100644
--- a/devel/release.md
+++ b/devel/release.md
@@ -84,6 +84,8 @@ For more details, see [#974](https://github.com/kubernetes-client/python/issues/
 
 4. Remove the tests directory (ref: https://github.com/kubernetes-client/python/commit/ec9c944f076999543cd2122aff2d86f969d82548). See the [upstream issue](https://github.com/OpenAPITools/openapi-generator/issues/5377) for more information.
 
+5. Add tests for the default `Configuration` behavior (ref: https://github.com/kubernetes-client/python/pull/1303 and https://github.com/kubernetes-client/python/pull/1285). The commit [1ffa61d0650e4c93e0d7f0becd2c54797eafd407](https://github.com/kubernetes-client/python/pull/1285/commits/1ffa61d0650e4c93e0d7f0becd2c54797eafd407) should be cherry-picked.
+
 Commit the manual changes like this [PR](https://github.com/kubernetes-client/python/pull/995/commits) does, then create your PR for review.
 
 Alternatively, you can use the `scripts/apply-hotfixes.sh` script to apply