Starting from version 5.1.5, Parabuild is fully compatible with AutoCAD 2021.
Other improvements in this update
Some cutting commands like miter will now draw macros automatically- Profiles, plates, and structures now have a new property/action called Disconnect from macro
- Improvements to the colors and layers when exporting to Ifc
- Some fixes were applied to the workshop drawings of curved profiles
To use Parabuild in combination with the new AutoCAD, you first need to install AutoCAD 2021 and also update Parabuild to version 5.1.5 or newer.
After that, you can switch between platforms using the Startup Settings tool. This tool can be found in the Parabuild group in the Windows Start Menu.