Apple has released new developer beta firmware for both the Lightning and USB-C versions of the AirPods Pro 2.
There’s no word on what the any of the firmware updates entail. Installation on the AirPods Pro 2 is automatic when the AirPods are in their charging case, the case is plugged into a charger, and the linked iPhone is in close proximity and connected to Wi-Fi. You can check the installed firmware revision in the “General” settings menu, by selecting “About,” then “AirPods.”