2 Added Microsoft VC compatibility
5 Continued conversion to ANSI C
6 Removed old CRT routines
9 Renamed pictures to phantoms, objects to phantom elements
10 Continued code cleanup
13 More code cleanup with reorganizing libraries
14 Added --log and --exp to sdf-1
15 Allowed negative numbers for window levels in CGI interface
18 Continued code cleanup
22 Better documented, coded raysum in-memory on on-disk options
25 Cleaned out library that wasn't being used by CTSim
26 Modified ctsim.cgi to read in configuration file ctsim.conf
29 First open source distribution for GNU/Linux
32 Converted to GNU/Linux
33 added MPI support via LAM library
36 Developed under MS-DOS and IBM EGA graphics