diff --git a/CHANGES.rst b/CHANGES.rst
index d8c05c2a5..6eafde626 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -2,6 +2,14 @@
 Changelog
 =========
 
+v0.50.0 (unreleased)
+--------------------
+Contributors to this version: Trevor James Smith (:user:`Zeitsperre`).
+
+Internal changes
+^^^^^^^^^^^^^^^^
+* Synchronized tooling versions across ``pyproject.toml`` and ``tox.ini`` and pinned them to the latest stable releases in GitHub Workflows. (:pull:`1744`).
+
 v0.49.0 (2024-05-02)
 --------------------
 Contributors to this version: Trevor James Smith (:user:`Zeitsperre`), Pascal Bourgault (:user:`aulemahal`), Juliette Lavoie (:user:`juliettelavoie`), David Huard (:user:`huard`), Gabriel Rondeau-Genesse (:user:`RondeauG`), Javier Diez-Sierra (:user:`JavierDiezSierra`), Sarah Gammon (:user:`SarahG-579462`), Éric Dupuis (:user:`coxipi`).