This is the Windows version of Bionic 1.5.0 Alpha! Download it for free!
This was detected as a virus by Windows Defender.
My friend had the same stubborn problem... the link might help:
That thread is old but it tells you how to make exclusions for certain files in Windows Defender. It probably marks Bionic as a virus because of the .dll files Unity exports come with. Sorry for the trouble.
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