2 Simpilifed endian handling
5 Added support for 64-bit (IA64) CPU
6 Removed broken B-spline interpolation
7 Added support for cygwin platform under Windows 2000
8 Added support for 16-bit PNG graphics
11 Added compile-time configuration of endian order
14 Modified the raysum file format to be platform independent
17 Added Microsoft VC compatibility
18 Cleaned up compilation warnings in libgraph
21 Continued conversion to ANSI C
22 Removed old CRT routines
25 Renamed pictures to phantoms, objects to phantom elements
26 Continued code cleanup
29 More code cleanup with reorganizing libraries
30 Added --log and --exp to sdf-1
31 Allowed negative numbers for window levels in CGI interface
34 Continued code cleanup
38 Better documented, coded raysum in-memory on on-disk options
41 Cleaned out library that wasn't being used by CTSim
42 Modified ctsim.cgi to read in configuration file ctsim.conf
45 First open source distribution for GNU/Linux
48 Converted to GNU/Linux
49 added MPI support via LAM library
52 Developed under MS-DOS and IBM EGA graphics