1987 AutoCAD v2
1990 MicroStation v4 GEOPAK
1992 InXpress (MicroStation)
1995 MicroStation 95 GEOPAK
1998 MicroStation J
2001 MicroStation v8
2004 MicroStation v8i
2008 GEOPAK Corridor Modeler/ InRoads Roadway Designer (SS2)
2016 SS4
2020 Connect Ed OpenRoads