-2.5.1 - Released 12/30/00
+3.0alpha1 - Released 12/30/00
-12/18/00 Added plotfile class
+ * Added PlotFile class to system, used by if2 and ctsim
+
+ * ctsim: Added image comparison statistics and image subtraction
+
+ * ctsim: Added plotting of rows & columns with y-axis scaling
+
+ * ctsim: Added row and column plot comparisons between two image
+ files.
+
+ * Reworked statistics algorithm to share between imagefile and
+ plotfile classes.
+
+ * imagefile.cpp: Fixed scaling bug when rasterizing Phantom with
+ nsamples > 2. Added image math functions.
+
+ * if2: Updated to output plot files and use new ImageFile class
+ math functions
2.5.0 - 12/18/00
First Microsoft Windows GUI version