2 Added compile-time configuration of endian order
5 Modified the raysum file format to be platform independent
8 Added Microsoft VC compatibility
9 Cleaned up compilation warnings in libgraph
12 Continued conversion to ANSI C
13 Removed old CRT routines
16 Renamed pictures to phantoms, objects to phantom elements
17 Continued code cleanup
20 More code cleanup with reorganizing libraries
21 Added --log and --exp to sdf-1
22 Allowed negative numbers for window levels in CGI interface
25 Continued code cleanup
29 Better documented, coded raysum in-memory on on-disk options
32 Cleaned out library that wasn't being used by CTSim
33 Modified ctsim.cgi to read in configuration file ctsim.conf
36 First open source distribution for GNU/Linux
39 Converted to GNU/Linux
40 added MPI support via LAM library
43 Developed under MS-DOS and IBM EGA graphics