There should be no major changes to your code to migrate to v4.x.x. Starting in v4.0.1, you can use the same runtime package rive-ios to install RiveRuntime into native macOS applications. The API usage of RiveRuntime in iOS and macOS applications should remain the same. If you do find any discrepancies or issues, please log an issue to https://github.com/rive-app/rive-ios/issues. https://github.com/rive-app/rive-ios/issues