| Version | Build | Release Date |
|---|---|---|
| 7.0 | ? | 13 May 1991 |
| 7.0.1 | ? | 21 October 1991 |
| 7.0.1P | ? | 14 September 1992 |
| 7.1 | ? | 28 August 1992 |
| 7.1P | ? | 19 October 1992 |
| 7.1P2 | ? | 12 April 1993 |
| 7.1P3 | ? | 18 September 1993 |
| 7.1P5 | ? | 1 December 1993 |
| 7.1P6 | ? | 1 February 1994 |
| 7.1.1 | ? | 21 October 1993 |
| 7.1.2 | ? | 14 March 1994 |
| 7.1.2P | ? | 18 July 1994 |
| 7.5 | ? | 12 September 1994 |
| 7.5.1 | ? | 23 March 1995 |
| 7.5.2 | ? | 19 June 1995 |
| 7.5.3 | ? | 1 January 1996 |
| 7.5.3 Revision 2 | ? | 1 May 1996 |
| 7.5.3 Revision 2.1 | ? | 7 August 1996 |
| 7.5.3 Revision 2.2 | ? | |
| 7.5.5 | ? | 27 September 1996 |
| 7.6 | ? | 7 January 1997 |
| 7.6.1 | ? | 7 April 1997 |