| Version 2.0 | 2.0 | October 1984 | AC1.50[3] | 5 |
|
DWG R2.05 file format |
| Version 2.1 | 2.1 | May 1985 | AC2.10 | 6 |
|
DWG R2.1 file format |
| Version 2.5 | 2.5 | June 1986 | AC1002 | 7 |
|
DWG R2.5 file format |
| Version 2.6 | 2.6 | April 1987 | AC1003 | 8 |
|
DWG R2.6 file format. Last version to run without a math co-processor. |
AutoCAD is a commercial computer-aided design (CAD) and drafting software application by Autodesk. The first release of the software started with version 1.0 in December 1982.[1] The software has been continuously updated since its initial release.
AutoCAD opens documents with DWG compatibility as a "DWG file format version code" where the specific version code can be found by opening the .dwg file in Windows Notepad or any text editor program. The file format version code is dependent on the AutoCAD version.[2]
The following table summarizes the version history of the AutoCAD software application.
| Release name | Version | Date of release | DWG tag[2] | Release | OS support | Comments |
|---|---|---|---|---|---|---|
| Version 1.0 | 1.0 | December 1982 | MC0.0 | 1 |
|
DWG R1.0 file format |
AutoCAD's history began with a program called Interact CAD, which was developed by Mike Riddle in 1977. Riddle's program was one of the first to digitize drawings. John Walker and other programmers bought Interact CAD and renamed it AutoCAD in 1982.
