This 64-bit software does not work in lower versions of Mac.For Hub based remotes, you need to use the mobile app or lower version of Mac or a Windows computer.This new Harmony Desktop will support only the following remotes Harmony 200, 300, 350, 600, 650, 665, 700, Touch, Ultimate One, and 950.
Click here to download our new 64-bit app “Harmony Desktop” for Catalina & Big Sur.