| Release | Sections Changed | Brief Notes |
| Date | ||
| 1994 Jun 29 | All | First Review |
| 1995 Jan 31 | All | Made compatible with LaTeX2HTML software |
| 1995 Feb 15 | Sections 2.5.3 & 3.12.1 | Added 2-D PSF datasets |
| 1995 Feb 22 | Sections 3.9.6 | Added gis#_ano_on_flf_180295.fits files |
| 1995 Mar 07 | Section 3.13.5 | Added gis#v4_0.rmf files |
| 1995 Jul 27 | Section 4.9.1 | Added sisph2pi_140795.fits file |
| 1995 Sep 01 | Section 2.2.6 | Added xrt_ea_v1_1.fits file |
| 1995 Sep 22 | Section 2.7.1 | Added xrt_psf_v1_0.fits file |
| 1995 Dec 08 | Sections 4.10.1, 4.10.2 & 4.10.3 | Files reorganized & renamed |
| 1996 Feb 13 | Section 3.13.5 | Added gis3v4_0_128ch.rmf |
| Section 3.13.8 | Files added | |
| 1996 Feb 26 | Sections 2.2.7 & 2.7.2 | Files added |