diff --git a/Installation/changes.html b/Installation/changes.html
index 10ad72791ac..691c3803063 100755
--- a/Installation/changes.html
+++ b/Installation/changes.html
@@ -108,6 +108,21 @@ David A. Wheeler's 'SLOCCount', restricted to the include/CGAL/
Release date: September 2013
+Object_and_primitive_id has been replaced by a template class
+ Intersection_and_primitive_id<Query> to determine the type depending on the
+ query object type.
+ boost::variant instead of a CGAL::Object.
+ For convenience, The previous behavior can be restored by defining the macro CGAL_ARR_POINT_LOCATION_VERSION to 1.
+ make_rational() taking a pair of numbers.include/CGAL/
Iso_rectangle_2 can now be constructed from a Bbox_2 and an Iso_cuboid_3 from a Bbox_3. CGAL::Object in order to
+ deal with the different possible return types. However, depending on the arguments it is possible
+ to reduce the possible return types to a small set. For this reason and to take advantage of the type
+ safety, we decided to use boost::variant instead of CGAL::Object.
+ The result_of protocol is now even more useful to determine the return type of the intersection
+ functions and functors. The change should be relatively transparent to the user thanks to the implicit constructor
+ added to CGAL::Object. However, it is recommended to upgrade your code.
+ The previous behavior can be restored by defining the macro CGAL_INTERSECTION_VERSION to 1.
+ CGAL::Object has been updated and now uses boost::shared_ptr
+ and boost::any. This implementation is faster.
+