All active support stopped several years ago, but the device will still work well. It doesn’t need any driver software to work. Just connect it to your computer via USB (or MIDI).
A lot of configuration of the messages sent by the Bitstream can be made on the unit itself. Advanced customization can be made on the Configuration software. This software still runs on mac OS 10.14 Mojave, but the Configuration software and the Firmware Upgrader software are 32-bit applications and so will not run natively on mac OS 10.15.
I advise you to download the manual and the Configuration software from the Wave Idea website:
http://www.waveidea.com/en/products/bitstream_3x/
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