2 Added support for 64-bit (IA64) CPU
3 Removed broken B-spline interpolation
4 Added support for cygwin platform under Windows 2000
7 Added compile-time configuration of endian order
10 Modified the raysum file format to be platform independent
13 Added Microsoft VC compatibility
14 Cleaned up compilation warnings in libgraph
17 Continued conversion to ANSI C
18 Removed old CRT routines
21 Renamed pictures to phantoms, objects to phantom elements
22 Continued code cleanup
25 More code cleanup with reorganizing libraries
26 Added --log and --exp to sdf-1
27 Allowed negative numbers for window levels in CGI interface
30 Continued code cleanup
34 Better documented, coded raysum in-memory on on-disk options
37 Cleaned out library that wasn't being used by CTSim
38 Modified ctsim.cgi to read in configuration file ctsim.conf
41 First open source distribution for GNU/Linux
44 Converted to GNU/Linux
45 added MPI support via LAM library
48 Developed under MS-DOS and IBM EGA graphics