Apple has released a second 16.4 firmware beta that’s designed for the Studio Display.
The company released the first beta firmware update for the monitor in mid-February, and now a second version is available, build 20E5223e.
While all Studio Displays are able to receive over-the-air firmware updates, this firmware update is currently limited to Macs that are running the macOS Ventura 13.3 beta. After installing the macOS Ventura 13.3 beta, Studio Display owners can go to “System Preferences” -> “Software Update” to install the firmware.
As is usual for beta updates, Apple and Mactrast strongly recommend not installing beta firmware on your daily driver Studio Display, instead reserving beta usage on units set aside for testing and development.