On top of RAW video recording, the company introduced several nice features for both the GH5s and G9 models. The biggest change is the improved AF performance introduced with the GH5 II, offering double the eye and face recognition speeds for people, and five times faster human and animal body detection speeds. It also introduced human head detection, making it easier to track a person if they turn away from the camera.
Other features borrowed from the GH5 II include a red frame around video to indicate that it's recording, camera orientation info for vertical video recording and video guide line functions. The features will be available for both cameras on June 8th, 2021.