diff --git a/Installation/CHANGES.md b/Installation/CHANGES.md
index 86dd48044b6..9f2c4f38d50 100644
--- a/Installation/CHANGES.md
+++ b/Installation/CHANGES.md
@@ -32,6 +32,14 @@ Release date: March 2019
 -   Added the class `CGAL::Rigid_triangle_mesh_collision_detection` to detect intersections between meshes
     and volumes undergoing affine transformations.
 
+### Point Set Processing
+
+-   `CGAL::mst_orient_normals()` can now be called with a set of user-selected
+    seed points that are known to be already oriented. A new optional named
+    parameter `point_is_constrained_map` is added for this purpose. The
+    original behavior (using one unique and automatically selected seed) is
+    kept if this parameter is not used.
+
 ### 3D Fast Intersection and Distance Computation
 
 -   The primitives `AABB_face_graph_triangle_primitive` and