They did it! VCV Rack v1 (actually 1.1.0 by now) is finally released. With support for polyphonic cables.
Modules have to explicitly support this, otherwise they stay mono as they were. In the module browser there is a new tag “Polyphonic” that conveniently lists all modules with appropriate support.
Almost 200 of the free modules already support it! Of course most of the stuff made by the VCV guy (including MIDI-CV and CV-MIDI) and fortunately the very good Vult modules.
Audible Instruments (aka Mutable Instruments) stuff is still mono, mono and poly modules can be mixed though.
Some guys are already porting this to Raspberry Pi 4 - will be interesting how it performs! (There was a port of 0.6.1 to pi3, but this was still quite sluggish UI-wise)
Ahhh, too many toys!
Home page: https://vcvrack.com/
Thread about the poly stuff: https://community.vcvrack.com/t/how-polyphonic-cables-will-work-in-rack-v1/1464
Description of poly feature in manual: https://vcvrack.com/manual/VoltageStandards.html#polyphony