OrbRider version 1.5.2 releases new functionality for the client software to receive software updates and a minor update to re-enable the free to play radio. OrbRider version 1.5.2 is available for PC and passes all requirement for "Windows Defender SmartScreen " checks and we are currently working on a macOS version that passes all of Apples version of this called, "macOS Gatekeeper Notarization"
Most of the development time right now is focused on overcoming technical issues required to pass Apple's notarization process. Once these issues are resolved and OrbRider has been notarized by Apple, you will no longer receive an "Unknown Publisher" warning when you first install the game for macOS. For now, you will need to refer to the instructions in the "OrbRider for macOS" post, to get around this error.