Apple recently updated the firmware version of the AirPods Max, AirPods Pro and AirPods.
The newly released firmware version is “4e71” and is the same for the 2nd and 3rd generation AirPods, as well as the AirPods Pro and the AirPods Max. Apple doesn’t usually reveal what’s changed for each firmware update, but it’s safe to say the bulk is for bug fixes and performance improvements.
There is currently no way to get the firmware update manually. However, AirPods, AirPods Pro, and AirPods Max users can try to force their devices to get it by plugging it into an iPhone and storing it in their respective charging cases.
To check the firmware version of your headphones, it is recommended that you go to Settings, then choose General, About and the device you have connected. A menu with relevant information appears. If not, go to Settings, then Bluetooth and My Devices, then Information.