diff --git a/CHANGELOG.md b/CHANGELOG.md
index c8166dd11..b5718f608 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -47,6 +47,7 @@ SPDX-License-Identifier: LGPL-3.0-or-later
         - The assembler bindings now also accept affordances and `DBCOption`, and they are also renamed to simply `matrix`, `vector`
           and `scalar`.
         - The assemblers also export the binding functions to bind the assemblers.
+- Rework Python Interface for `DirichletValues` plus adding support to easily fix boundary DOFs of subspacebasis in C++ and Python
 
 ## Release v0.4 (Ganymede)
 
diff --git a/ikarus/python/test/testdirichletvalues.py b/ikarus/python/test/testdirichletvalues.py
index c6a87a9c0..676bfc2c7 100644
--- a/ikarus/python/test/testdirichletvalues.py
+++ b/ikarus/python/test/testdirichletvalues.py
@@ -84,6 +84,7 @@ def fixTopSide(vec, localIndex, localView, intersection):
     dirichletValues2.fixIthDOF(1)
     assert dirichletValues2.fixedDOFsize == 2 + indicesPerDirection + 1
     assert dirichletValues2.container[1]
+    assert dirichletValues2.isConstrained(1)
 
 
 if __name__ == "__main__":