+0.5.2-b3 - 4/30/200
+ More code cleanup with reorganizing libraries
+ Added --log and --exp to sdf-1
+ Allowed negative numbers for window levels in CGI interface
+
+0.5.2-b2 - 4/30/200
+ Continued code cleanup
+
+0.5.2-b1 - 4/29/2000
+ Fixed a few MPI bugs
+ Better documented, coded raysum in-memory on on-disk options
+
0.5.1 - 4/28/2000
Cleaned out library that wasn't being used by CTSim
-
+ Modified ctsim.cgi to read in configuration file ctsim.conf
+
0.5.0 - 4/27/2000
First open source distribution for GNU/Linux