diff --git a/Installation/CHANGES.md b/Installation/CHANGES.md
index 3c60725161c..e909d9ea8f5 100644
--- a/Installation/CHANGES.md
+++ b/Installation/CHANGES.md
@@ -1,6 +1,15 @@
 Release History
 ===============
 
+### [3D Mesh Generation](https://doc.cgal.org/6.0/Manual/packages.html#PkgMesh3)
+
+-   **Breaking change**: Removed the concept `TriangleAccessor`, the template parameter `TriangleAccessor`, as well
+    as the class `Triangle_accessor`. They were no longer used for several releases.
+
+-   Removed the class templates `Gray_image_mesh_domain_3` and `Labeled_image_mesh_domain_3`
+    which are deprecated since CGAL-4.13.
+
+
 [Release 5.6](https://github.com/CGAL/cgal/releases/tag/v5.6)
 -----------