I ran across an old copy of the Panorama Journal from the summer of 1994 that had a listing inside of the release dates up to that time.
Overvue 1.0 - 09/1984
Overvue 2.0 - 03/1985
Panorama 1.0 -11/1988
Panorama 1.1 - 03/1989
Panorama 1.5 - 11/1989
Panorama 2.0 - 06/1991
Panorama 2.1 - 01/1993