diff --git a/Installation/changes.html b/Installation/changes.html
index 3bdc0c58f81..83f257b5679 100644
--- a/Installation/changes.html
+++ b/Installation/changes.html
@@ -166,6 +166,14 @@ and <code>src/</code> directories).
     <li>Speed up the edge removal in case the incident faces contains many holes.</li>
   </ul>
 <!-- Triangulations and Delaunay Triangulations -->
+  <h3>3D Periodic Triangulations</h3>
+  <ul>
+    <li>Add class Periodic_3_regular_triangulation_3, which provides functionality on 3D periodic weighted Delaunay triangulations.
+     The construction is fully dynamic: it provides both point insertion and vertex removal.
+    </li>
+    <li>Add new locate and geometric access functions.
+    </li>
+  </ul>
 <!-- Voronoi Diagrams -->
 <!-- Mesh Generation -->
   <h3>3D Mesh Generation</h3>