Unfortunately, Universal Control v1.7.6 is and will always be the latest UC version for the classic 16.0.2. It says in the "Universal Control 3.1.2 Milestone Release Notes":
Universal Control 1.7.6 for FireWire products (including the StudioLive 16.0.2 Classic) still works onWindows 7, 8.1, and 10, as well as Mac OS X 10.8.5—macOS 10.14 Mojave. However, it will not beavailable on macOS 10.15 Catalina or future macOS versions. Users of these products are advised notto update their systems beyond macOS 10.14 Mojave.