I believe the code was written by CodeWeavers. You can see here that they still do not have a solution for the recent Mac OS https://www.codeweavers.com/about/bl...or-catalinayet

You may want to contact them and see what they say about the cost to finish the 64 bit beta.

I think having the 64 bit beta installer when BW closed made many believe that the next version of Mac OS would still run BW. Even though no promises were made, this is hardly an "every effort" to keep BW running on Macs. BW should contact the developers and advise back to us, but not sure that is going to happen.