This is more of an FYI:
The extension migration tool did not move the 3dConnection Extension.
So of course my space mouse did not function.
I was required to reinstall the “plugin” through the System Settings…
And then it required another restart / reboot.
Note:
there is no 3dConnexion extension in the warehouse, there use to be… but that was a long time ago.
They install their main extension in /Library instead of your user Library. It may be that the extension migrator doesn’t look there. Try downloading the latest driver from 3DC and see it that helps. I have it working in 2025 on my Mac.
To be clear… I got it up and running. With the above method.
This all makes sense. 3dConnexion can be used by most apps on your system, and you’ve always had to reinstall it for a new version.