work in ArchiCAD 19 and 21?

[Anonymous]

Can I have both of the plugins ArchiCAD 19 version ArchiCAD 21 version installed at the same time (on same computer ofcourse).
For older projects I want to be sure to have the 19 version to be working exactly as it is working now.
But for newer projects I need to work in ArchiCAD 21.

So now I have only the plugin 19 installed and I want to install 21 as well.
or do I need to uninstall 19 first.. and then swap back later when want ot work in ArchiCAD 19?

[mikas]

Do you refer to a codemeter module with a "plugin"?
You can use both 19 and 21 with an updated 21 codemeter dongle.

If you have installed 19, don't uninstall it, just install 21, update the dongle, and they both work, at the same time even. I believe this the preferred method. They actually say you should not install older ArchiCAD versions on top of the newer installations, but allways vice versa.