In AutoCAD 202 1, the new functions worth recommending are graphic history and external reference comparison.
History of graphics: Compare the past and current versions of graphics and check the evolution of users' work.
Xref comparison: View the changes made to the current drawing based on the changed Xref.
There are many enhanced functions, including "block" palette, performance enhancement, using AutoCAD on any device, cloud storage connection, quick measurement, enhanced DWG comparison, cleaning and redesign, etc. The extended workflow can now use AutoCAD anytime, anywhere, save to the Web, access flexibly, share views and so on.