+0.6.0-b1 - 6/6/2000
+ First C++ conversions
+ Portable IF (image file) format implemented with objects (SDF removed)
+ - Now all data files are cross-platform compatible
+ Converted from MPI to MPI++
+ Converted backprojection to object-oriented
+ Removed MTX from libkmath as no longer need -- replaced with C++ matrices
+
+0.5.4 - 6/4/2000
+ Simpilifed endian handling
+
+0.5.4-b3 - 6/1/2000
+ Added support for 64-bit (IA64) CPU
+ Removed broken B-spline interpolation
+ Added support for cygwin platform under Windows 2000
+ Added support for 16-bit PNG graphics
+
+0.5.4-b2 - 5/16/2000
+ Added compile-time configuration of endian order
+
+0.5.4-b1 - 5/14/2000
+ Modified the raysum file format to be platform independent
+
+0.5.3 - 5/11/2000