File formats and versions

Official Name	Version	Release	Date of release	Comments
AutoCAD Version 1.0	1.0	1	1982, December	DWG R1.0 file format introduced.
AutoCAD Version 1.2	1.2	2	1983, April	DWG R1.2 file format introduced.
AutoCAD Version 1.3	1.3	3	1983, August	DWG R1.3 file format introduced.
AutoCAD Version 1.4	1.4	4	1983, October	DWG R1.4 file format introduced.
AutoCAD Version 2.0	2.0	5	1984, October	DWG R2.05 file format introduced.
AutoCAD Version 2.1	2.1	6	1985, May	DWG R2.1 file format introduced.
AutoCAD Version 2.5	2.5	7	1986, June	DWG R2.5 file format introduced.
AutoCAD Version 2.6	2.6	8	1987, April	DWG R2.6 file format introduced. Last version to run without a math co-processor.
AutoCAD Release 9	9.0	9	1987, September	DWG R9 file format introduced.
AutoCAD Release 10	10.0	10	1988, October	DWG R10 file format introduced.
AutoCAD Release 11	11.0	11	1990, October	DWG R11 file format introduced.
AutoCAD Release 12	12.0	12	1992, June	DWG R11/R12 file format introduced. Last release for Apple Macintosh till 2010.
AutoCAD Release 13	13.0	13	1994, November	DWG R13 file format introduced. Last release for Unix, MS-DOS and Windows 3.11.
AutoCAD Release 14	14.0	14	1997, February	DWG R14 file format introduced.
AutoCAD 2000	15.0	15	1999, March	DWG 2000 file format introduced.
AutoCAD 2000i	15.1	16	2000, July
AutoCAD 2002	15.2	17	2001, June
AutoCAD 2004	16.0	18	2003, March	DWG 2004 file format introduced.
AutoCAD 2005	16.1	19	2004, March
AutoCAD 2006	16.2	20	2005, March	Dynamic Block introduced.
AutoCAD 2007	17.0	21	2006, March	DWG 2007 file format introduced.
AutoCAD 2008	17.1	22	2007, March	Annotative Objects introduced. AutoCAD 2008 and higher (including AutoCAD LT) can directly import and underlay DGN V8 files.
AutoCAD 2009	17.2	23	2008, March	Revisions to the user interface including the option of a Microsoft Office 2007-like tabbed ribbon.
AutoCAD 2010	18.0	24	2009, March 24	DWG 2010 file format introduced. Parametrics introduced. Mesh 3D solid modeling introduced. PDF underlays. Both 32-bit and 64-bit versions of AutoCAD 2010 and AutoCAD LT 2010 are compatible with and supported under Microsoft Windows 7.
AutoCAD 2011	18.1	25	2010, March 25	Surface Modeling, Surface Analysis and Object Transparency introduced. October 15, 2010[9] AutoCAD 2011 for Mac was released. Are compatible with and supported under Microsoft Windows 7
AutoCAD 2012	18.2	26	2011, March 22	Associative Array, Model Documentation. Support for complex line types in DGN files is improved in AutoCAD 2012. DGN editing.
AutoCAD 2013	19.0	27	2012, March 27	DWG 2013 file format introduced.
AutoCAD 2014	19.1	28	2013, March 26	File Tabs, Design Feed, Reality Capture, Autodesk Live Maps
AutoCAD 2015	20.0	29	2014, March 27	Line smoothing (anti-aliasing), Windows 8.1 support added, dropped Windows XP support (incl. compatibility mode)
AutoCAD 2016	20.1	30	2015, March 23	More comprehensive canvas, richer design context, and intelligent new tools such as Smart Dimensioning, Coordination Model, and Enhanced PDFs.
AutoCAD 2017	21.0	31	2016, March 21	PDF import, Associative Center Marks and Centerlines, DirectX 11 graphics.