I have uninstalled the free Steam version and set the paid steam version to receive beta updates.
It doesn't work.
I tried manually downloading the newest update from the website, but it was only the free version.
I tried running the paid version again and it is still the previous version.
Also, whenever I try to load a downloaded capx, it either tries to load or install the free version, or returns an error, but won't open it with the paid steam version; I need to open the steam version first then select open within the software, then browse to the downloaded capx, then open, which is a lot more tedious.