diff --git a/Installation/CHANGES.md b/Installation/CHANGES.md
index 8e69c8d7983..33495f1a6d7 100644
--- a/Installation/CHANGES.md
+++ b/Installation/CHANGES.md
@@ -1,7 +1,6 @@
 Release History
 ===============
 
-
 Release 4.13
 ------------
 
@@ -29,6 +28,10 @@ Release date: September 2018
     to reflect the real needs of the code (some types and operators were used
     in the code but did not appear in the concepts).
 
+### Polygon Mesh Processing
+-   Added a function to apply a CGAL::Aff_transformation_3 to a mesh : 
+    - `CGAL::Polygon_mesh_processing::transform()`
+
 Release 4.12
 ------------
 
@@ -180,9 +183,6 @@ Release date: April 2018
     -   `CGAL::Polygon_mesh_processing::detect_vertex_incident_patches()`
     -   `CGAL::Polygon_mesh_processing::sharp_edges_segmentation()`
 
--   Added a function to apply a CGAL::Aff_transformation_3 to a mesh : 
-    - `CGAL::Polygon_mesh_processing::transform()`
-
 ### Point Set Shape Detection
 
 -   **Breaking change**: