This has worked for me with the Mac. It appears to be the only way to get the correct version of the software as the Sooloos support site is usually outdated.

Wayne

System 1: 861v6+ID40, UHD722, DSP640x2, DSP520C, DSP320x2, DSWx2, Sony XBR-100Z9D, Oppo UDP-203, Kaleidescape, AppleTV 4K
System 2: 808.3 upgraded to 808v6, MC200, HD621, DSP8000.2 with SE Upgrade
System 3: F80
Currently unused: DSP3200x4, DSP33x2, DSP33C, D1500, DSP420x2, G68ADV, G98DH, HD421