Here is a reference of AutoCAD new features starting with the 2007 version.
- New Features Workshop – AutoCAD 2007
- New Features Workshop – AutoCAD 2008
- New Features Workshop – AutoCAD 2009
- New Features Workshop – AutoCAD 2010
- New Features Workshop – AutoCAD 2011
- New Features – AutoCAD 2012
- New Commands and System Variables – AutoCAD 2013
- New Commands and System Variables – AutoCAD 2014
- New Commands and System Variables – AutoCAD 2015