The additional features were MULTIPLE command modifier, spline curves, advanced user interface, etc. The R9 was the first version of AutoCAD that required an 80x87 math coprocessor. This version was based on the 8086 families of microprocessors. The R in these versions stands for Release. Some of the features were added, such as 3D line and 3D face entities, REDRAW command, enhancement of DIMZIN, and AREA dimensioning variable. This version introduced add on features such as UNDO/REDO facility, PAN, ZOOM, enhanced keyboard, menu loading and capacity becomes faster than the previous version, COP, TIME, POINT, PLOT, RESUME, MINSERT, extended memory, angles, and commands (OFFSET, POLYGON, EXTEND, EXPLODE, MEASURE, STRETCH, MEASURE, etc.). Some of the features were added, such as LIMITS, FILLET extended, 3D Visualization, polylines, layer, freeze command, holding values, new commands (CHAMFER, DXBIN, PRPLOT, BLIPMODE), etc. This version introduced add on features such as line type, text styles, attributes, the extension of area command, dynamic specifications, angle, commands (SAVE, VIEW, MIRROR, O SNAP, QTEXT, V SLIDE, M SLIDE, and ENDSV), etc. Some of the features were added, such as text fonts, ZOOM, and block enhancements, new commands (HATCH, UNITS, BREAK, FILLET, AXIS, and SKETCH), arrays, snap mode, aligned text, status line, rotation angle, and control keys. This version introduced add on features such as configuration, justified text, adjustment of alignment and plot origin, grid spacing, large plotter, standardized color numbers, and addition of header information in the DXF file. It was released after the first initial version. The file format DWG R1.0 was introduced during the time of release. It was demonstrated at the Comdex (computer expo trade show). It was the first initial release of AutoCAD. Since 2010, AutoCAD was released as a mobile application marketed as AutoCAD 360.ДЄll the versions of AutoCAD are listed in the below table: S.no Or Release no. The latest version always includes more advanced features than the previous version.

The latest version by 2019 end is AutoCAD 2020.

AutoCAD by Autodesk has released various versions.

Autocad r14 release date