diff --git a/Installation/changes.html b/Installation/changes.html
index 6088d3f7b62..85e4291dc28 100644
--- a/Installation/changes.html
+++ b/Installation/changes.html
@@ -118,11 +118,20 @@ and <code>src/</code> directories).
 
 <!-- Installation (and general changes) -->
 <!-- New packages -->
+  <h3>2D Polyline Simplification (new package)</h3>
+  <ul>
+    <li>This package enables to simplify polylines with the guarantee
+        that the topology of the polylines does not change. This can be
+        done for a single polyline as well as for a set of polyline
+        constraints in a constrained triangulation. The simplification
+        can be controlled with cost and stop functions.</li>
+  </ul>
+
   <h3>2D Generalized Barycentric Coordinates (new package)</h3>
   <ul>
-    <li>  This package offers an efficient and robust implementation of
-          two-dimensional closed-form generalized barycentric coordinates
-          defined for simple two-dimensional polygons.</li>
+    <li>This package offers an efficient and robust implementation of
+        two-dimensional closed-form generalized barycentric coordinates
+        defined for simple two-dimensional polygons.</li>
   </ul>
 
   <h3>Scale-Space Surface Reconstruction (new package)</h3>
@@ -139,10 +148,10 @@ and <code>src/</code> directories).
 
   <h3>Surface Mesh (new package)</h3>
   <ul>
-    <li>The surface mesh class provided by this package is a data structure
-      that can be used as halfedge data structure or polyhedral surface. It
-      is an alternative to the packages <code>CGAL::Polyhedron_3</code>
-      and <code>CGAL::HalfedgeDS</code>. </li>
+    <li>The surface mesh class provided by this package is an implementation
+        of the halfedge data structure allowing to represent polyhedral surfaces.
+        It is an alternative to the packages <code>CGAL::Polyhedron_3</code>
+        and <code>CGAL::HalfedgeDS</code>. </li>
   </ul>
 
   <h3>Triangulation (new package)</h3>
diff --git a/Maintenance/public_release/announcement/mailing.eml b/Maintenance/public_release/announcement/mailing.eml
index 76c0cdfad24..9d450e386c2 100644
--- a/Maintenance/public_release/announcement/mailing.eml
+++ b/Maintenance/public_release/announcement/mailing.eml
@@ -8,6 +8,14 @@ of CGAL, the Computational Geometry Algorithms Library.
 Besides fixes to existing packages, the following has changed since
 CGAL 4.5:
 
+  o 2D Polyline Simplification (new package)
+
+    This package enables to simplify polylines with the guarantee
+    that the topology of the polylines does not change. This can be
+    done for a single polyline as well as for a set of polyline
+    constraints in a constrained triangulation. The simplification
+    can be controlled with cost and stop functions.
+
 
   o 2D Generalized Barycentric Coordinates (new package)
 
diff --git a/Polyline_simplification_2/doc/Polyline_simplification_2/PackageDescription.txt b/Polyline_simplification_2/doc/Polyline_simplification_2/PackageDescription.txt
index 57a5dddfbef..a6321a1c95d 100644
--- a/Polyline_simplification_2/doc/Polyline_simplification_2/PackageDescription.txt
+++ b/Polyline_simplification_2/doc/Polyline_simplification_2/PackageDescription.txt
@@ -17,7 +17,7 @@
 \cgalPkgPicture{PolylineSimplification-small.png}
 \cgalPkgSummaryBegin
 \cgalPkgAuthor{Andreas Fabri}
-\cgalPkgDesc{This package  allows to simplify polylines with the guarantee that the topology of the polylines does not change. This can be done for a single polyline as well as for a set of polyline constraints in a constrained triangulation. The simplification can be controlled with cost and stop functions.}
+\cgalPkgDesc{This package  enables to simplify polylines with the guarantee that the topology of the polylines does not change. This can be done for a single polyline as well as for a set of polyline constraints in a constrained triangulation. The simplification can be controlled with cost and stop functions.}
 \cgalPkgManuals{Chapter_2D_Polyline_simplification,PkgPolylineSimplification2}
 \cgalPkgSummaryEnd
 \cgalPkgShortInfoBegin
diff --git a/Surface_mesh/doc/Surface_mesh/PackageDescription.txt b/Surface_mesh/doc/Surface_mesh/PackageDescription.txt
index 24c58051141..58ead2eda6c 100644
--- a/Surface_mesh/doc/Surface_mesh/PackageDescription.txt
+++ b/Surface_mesh/doc/Surface_mesh/PackageDescription.txt
@@ -7,8 +7,8 @@
 \cgalPkgPicture{Surface_mesh_teaser.png}
 \cgalPkgSummaryBegin
 \cgalPkgAuthor{Mario Botsch, Daniel Sieger, Philipp Moeller, and Andreas Fabri}
-\cgalPkgDesc{The surface mesh class provided by this package is a data structure
- that can be used as halfedge data structure or polyhedral surface. It is
+\cgalPkgDesc{The surface mesh class provided by this package is an implementation
+ of the halfedge data structure allowing to represent polyhedral surfaces. It is
 an alternative to the packages \ref PkgHDSSummary and \ref PkgPolyhedronSummary.
 The main differences are that it is indexed based and not pointer based,
 and that the mechanism for adding information to vertices, halfedges, edges,