| Year | Code name | Description |
|---|---|---|
| 1985-1986 | AutoLisp entity access | |
| 1986-1987 | Urgent Fury | Pull-down menus and dialogues |
| 1987-1988 | Certain Trumpet | Curves and sculptured surfaces |
| 1988-1989 | Placid Impact | AutoCAD database recovery and audit |
| 1989-1990 | Caustic Moment | Moving IGES from AutoCAD core code |