In general, the SDK upgrade process is smooth and simple. All you have to do is replace the current EffectPlayer XCFramework with its latest version and consider the information from migration guides.
A new release may include new features or changes of the already existing versions. In this case, a sales manager will provide you with updated client token and config.json accordingly.
Copy the existing EffectPlayer XCFramework and paste it inside your project, replacing the old version of SDK.