If you use Logitech gear on a macOS device—perhaps you got a brand new MX Master 4 over the holidays—and spotted it stopped working, that's because Logitech forgot to update its dev certificate.
According to the information, not only Options+ under macOS is impacted but also the configuration application G HUB, which is intended for gamers. “Logitech Options+ and G HUB are currently not ...