diff --git a/RELEASE_NOTES.rst b/RELEASE_NOTES.rst
index 9b127af3da3ae..256f377e6aa9a 100644
--- a/RELEASE_NOTES.rst
+++ b/RELEASE_NOTES.rst
@@ -230,6 +230,11 @@ Target version for core dependency ``pendulum`` package set to 3 (#36281).
 Support for pendulum 2.1.2 will be saved for a while, presumably until the next feature version of Airflow.
 It is advised to upgrade user code to use pendulum 3 as soon as possible.
 
+Pendulum 3 introduced some subtle incompatibilities that you might rely on in your code - for example
+default rendering of dates is missing ``T`` in the rendered date representation, which is not ISO8601
+compliant. If you rely on the default rendering of dates, you might need to adjust your code to use
+``isoformat()`` method to render dates in ISO8601 format.
+
 Airflow packaging specification follows modern Python packaging standards (#36537).
 """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
 We standardized Airflow dependency configuration to follow latest development in Python packaging by
diff --git a/airflow/reproducible_build.yaml b/airflow/reproducible_build.yaml
index 345cb20a8528b..27e8b2716368d 100644
--- a/airflow/reproducible_build.yaml
+++ b/airflow/reproducible_build.yaml
@@ -1,2 +1,2 @@
-release-notes-hash: 3f7de41c6269a20a781abe8a2f06648d
-source-date-epoch: 1710912774
+release-notes-hash: 97fdcc73f2e6b12136ddb310653dae9e
+source-date-epoch: 1712066695