diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 25b14b9b54ef1d886a110ff3844c2f6960968fe1..4667961009c09f1f2bea92ee750c3aa3630b1082 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -1,3 +1,11 @@
+Changes in Release 2.10.0
+--------------------------------------------------------------------------------
+ * Fixed a bug in Molck where atoms in unknown residues would not be cleaned up
+   with rm_unk_atoms=True.
+ * Changed default MolckSettings so that rm_unk_atoms defaults to True.
+ * Added details in documentation for Molck.
+
+
 Changes in Release 2.9.3
 --------------------------------------------------------------------------------
  * Bugfix release to enable OpenStructure in Python 3.13