diff --git a/Installation/CHANGES.md b/Installation/CHANGES.md
index 725f603b205..ecc5e08d8f0 100644
--- a/Installation/CHANGES.md
+++ b/Installation/CHANGES.md
@@ -53,10 +53,12 @@ Release date: September 2018
 
 -   Added the function `extreme_points_3()` computing the
     points on the convex hull without underlying connectivity.
--   Added a traits adapter for `extreme_points_3()` called 
-    `Extreme_points_traits_adapter_3` that permits the use of 
-    the function with something else than just points, if 
-    providing the right property map.
+-   Added a traits adapter called `Extreme_points_traits_adapter_3`
+    that enables the use of the function `extreme_points_3()` on a range of keys,
+    each key being associated to 3D point using a property map.
+    This can be used to get the vertices of a mesh that are on it
+    convex hull, or the indices of points in a range that are
+    on it convex hull.
 
 ### Point Set Processing