--- DarthVader/TrackerLevel2/doc/Change-log.txt	2006/12/01 11:44:22	1.2
+++ DarthVader/TrackerLevel2/doc/Change-log.txt	2008/12/05 08:26:45	1.4
@@ -8,6 +8,7 @@
 v2r02 --> 24 Nov 2006
 
 Modified to mask VA1 also run-by-run, on the basis of <SIG>
+
 ===============================================================================
 v2r03 --> 201Dec 2006
 
@@ -15,3 +16,35 @@
 Set constraints for AL(3)                      (mini.f)
 Fixed bug on assignement of good1(iview)       (reductionflight.f)
 Fixed bug in COG computation                   (functionpfa.f)
+
+===============================================================================
+
+ >>>missing<<<
+
+===============================================================================
+v3r00 --> 27 Apr 2006
+
+New Hough parameters (David)
+COG4
+COG (Samu) resolution for MIPs
+Resolution multiplied by factor that takes into account strip noise
+Digital resolution for saturated
+Magnetic field shift and angle
+Fixed bug on dE/dx
+Added VK masks
+Added information about: ladder and sensor intersected by the trajectory, bad cluster, saturated cluster 
+Added tailx taily
+Removed TRef and TRefArray
+===============================================================================
+
+ >>>missing<<<
+
+===============================================================================
+v6r00
+
+Optimized the tracking routine:
+- released starting condition for Hough transform (no more 3 XY couples, but 3X+3Y with at least 1 XY couple)
+- more efficient second-track search
+- nuclei recovery condition (low-charge clusters excluded from track search)
+
+NB!!!!: for data reduced with this software proper EFIICIENCIES should be considered