diff --git a/src/ChangeLog b/src/ChangeLog
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,18 @@
+2010-10-14    <merks@cwi.nl>
+
+	* cell.cpp (DivideWalls): accomodated for rename of Circumference -> WallCircumference
+
+	* hull.h: added an operator< to sort Points
+
+	* hull.cpp: added an operator< to sort Points
+
+	* cellbase.cpp (ExactCircumference): I added a new function ExactCircumference, yielding the circumference of the cell along its wall_elements
+
+	* VirtualLeaf.cpp: adjust info_string to accomodate for new name of function CellBase::Circumference -> CellBase::WallCircumference
+	* mesh.cpp: corrected Mesh::Compactness, the boundary coordinates need to be sorted in x,y order for the convex hull algorithm (thanks Margriet!). I updated CSVExportCellData so it exports the circumferences of hull and boundary_polygon.
+	
+
+
 2010-10-08    <guravage@caterpie.sen.cwi.nl>