A variety of new features have been added to ShapeBuilder 13 including the addition of a command line, the ability to import external scrips, and improvements to the CAD importer as discussed in this video.
▬▬ Contents of this video ▬▬
0:00 - Intro
0:12 - Command Line
1:11 - External Scripts
1:45 - Import CAD
2:42 - Outro