diff --git a/Installation/CHANGES.md b/Installation/CHANGES.md
index 11281a338e2..50686eb91f2 100644
--- a/Installation/CHANGES.md
+++ b/Installation/CHANGES.md
@@ -53,6 +53,7 @@
 -   Fixed do_intersect() of a 2D Arrangement and a curve.
 -   Added overloads of `draw(Arrangement_on_surface_2& arr, Bbox& bbox, ...)` that enable the drawing of arrangements induced by unbounded curves.
 -   Introduced a Geometry Traits concept for arrangement on surfaces that enables the provision of the disconnected portions of an approximation of a curve within a given bounding box.
+-   Made the `Arr_linear_traits_2` a model of the new concept.
 
 ### [3D Mesh Generation](https://doc.cgal.org/6.1/Manual/packages.html#PkgMesh3)