diff --git a/docs/release-notes.rst b/docs/release-notes.rst
index 64d8f2a3..3638519e 100644
--- a/docs/release-notes.rst
+++ b/docs/release-notes.rst
@@ -11,8 +11,10 @@ Upcoming release
 
 Internal Changes
 ^^^^^^^^^^^^^^^^
+* Drop Python 3.9 Support by `Cora Schneck`_ in (:pr:`599`)
 * Reduce DeprecationWarnings in testing by `Cora Schneck`_ in (:pr:`582`)
 
+
 v2024.03.0 (March 29, 2024)
 ---------------------------
 This release includes a bug fix for ``delta_pressure``.