Apple issues a firmware update for the AirPods Pro
Apple Updates AirPods Firmware to 4C165 - TidBITS
AirPods 2 will work on pre-iOS 12.2 firmware, albeit with 'limited' functionality
iOS: How to Check Your AirPods Firmware Version - The Mac Observer
New 1st gen AirPods firmware update !!! Sound way more immersive and connection speed super fast: thanks Apple for not making me regret buying the “old” model : r/airpods
Apple Silently Updates AirPods Firmware to 3.5.1 - TidBITS
AirPods Pro Firmware Problems - TidBITS
Apple Updates AirPods 2, AirPods Pro and AirPods Max Firmware to Version 4A400 - MacRumors