Hi Bob, it comes as VST3 only. Here are the tech data from their web site:

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Celemony _ Technical matters .jpg (253.22 KB, 132 downloads)

I'm no longer allowed to go caroling at the psych hospital.
I guess Do You Hear What I Hear was a bad song choice!

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware