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Chapter 1: Introducing AutoCAD and AutoCAD LT
Table 1-1 AutoCAD Versions and DWG File Formats
AutoCAD Version AutoCAD LT Version Release
Year
DWG File
Format
AutoCAD 2012 AutoCAD LT 2012 2011 Acad 2010
AutoCAD 2011 AutoCAD LT 2011 2010 Acad 2010
AutoCAD 2010 AutoCAD LT 2010 2009 Acad 2010
AutoCAD 2009 AutoCAD LT 2009 2008 Acad 2007
AutoCAD 2008 AutoCAD LT 2008 2007 Acad 2007
AutoCAD 2007 AutoCAD LT 2007 2006 Acad 2007
AutoCAD 2006 AutoCAD LT 2006 2005 Acad 2004
AutoCAD 2005 AutoCAD LT 2005 2004 Acad 2004
AutoCAD 2004 AutoCAD LT 2004 2003 Acad 2004
AutoCAD 2002 AutoCAD LT 2002 2001 Acad 2000
AutoCAD 2000i AutoCAD LT 2000i 2000 Acad 2000
AutoCAD 2000 AutoCAD LT 2000 1999 Acad 2000
AutoCAD Release 14 AutoCAD LT 98 and 97 1997 Acad R14
AutoCAD Release 13 AutoCAD LT 95 1994 Acad R13
AutoCAD Release 12 AutoCAD LT Release 2 1992 Acad R12
The new file format introduced in AutoCAD 2010 was necessary to handle
new features — especially parametric drafting, and that format proved more
efficient at saving files and handling much larger objects. Best of all, from the
user’s perspective, it was noticeably faster to work with than AutoCAD 2009.
Working with AutoCAD is easier when your co-workers and colleagues in
other companies all use the same release of AutoCAD and AutoCAD-related
tools. That way, your DWG files, add-on tools, and even the details of your
CAD knowledge can be mixed and matched among your workgroup and part-
ners. In the real world, you may work with people, probably from other com-
panies, who use AutoCAD releases as old as AutoCAD 2006 — or even older.
Many programs claim to be DWG-compatible — that is, capable of converting
data to and from the AutoCAD DWG format. Achieving this compatibility is,
however, a difficult thing to do well. Even a small error in file conversion can
have results ranging in severity from annoying to appalling. Every time you
open a drawing file, AutoCAD checks its parentage and warns you if the draw-
ing was created by a non-Autodesk program. If you exchange DWG files with
people who use other CAD programs, you may have to spend time finding
and fixing translation problems.
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