I purchased BiaB 2018 for the Mac yesterday and got this message. It went away and I have not seen it since, and everything seems to work fine.

Someone posted that there should be a 2019 64 bit Mac version appearing soon. Would this be a free upgrade as I have only just purchased the 2018 version.

Tigz
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MacBook Air, iMac 21” 4K, both running Mojave. Logic Pro X, Garageband, Mainstage 3, Analog Lab 4. Arturia Keylab 49.
BiaB UltraPAK