Apple has released the third Studio Display firmware beta for version 16.4.
The beta cycle for iOS 16.4 and macOS Ventura 13.3 is on its third release. Users with the beta installed on a Mac connected to the Studio Display will get prompted to install the monitor's third beta for version 16.4.
Studio Display owners who are beta users can update their firmware by heading to System Settings on their Mac. Navigate to General, then Software Update to see if the beta is available.
It's unclear what Apple has included in the updated firmware, but it could contain bug fixes, security patches, or improvements to performance.