Release v25.4.0

Author: kratman

CHANGELOG.md

@@ -1,5 +1,7 @@
 # [Unreleased](https://github.com/pybamm-team/PyBaMM/)
 
+# [v25.4.0](https://github.com/pybamm-team/PyBaMM/tree/v25.4.0) - 2025-04-02
+
 ## Features
 
 - Revision of the hysteresis notebook to include the method implemented in the module `axen_ocp`. ([#4880](https://github.com/pybamm-team/PyBaMM/pull/4880))

CITATION.cff

@@ -24,6 +24,6 @@ keywords:
   - "expression tree"
   - "python"
   - "symbolic differentiation"
-version: "25.1.1"
+version: "25.4.0"
 repository-code: "https://github.com/pybamm-team/PyBaMM"
 title: "Python Battery Mathematical Modelling (PyBaMM)"