Version
introduction
Modified in Remarks of modification Read Write
DXF R13 DXF R14,
DXF R15/2000,
DXF 2004
(R14) Added code 3 and values 0, 1, 2, 4, 8, 16, 32,64,127,128, 255 and 32768 for code 90
(2002) Added values 256, 512, 895, 1023, removed values 127 and 255 for code 90
(2004) Added code 91 and value 1024 for code 90

Note:

For more information see Default Class Values