Apple has provided a new firmware update for the AirPods Max, and the new firmware is 6A325, up from the 6A324 firmware released in January, according to macrumors.
Apple doesn't provide details on what features might be included in the updated firmware, so it's not clear what's new, and the notes often list only general bug fixes. Apple also doesn't provide instructions on how to upgrade the software on the AirPods, but the firmware installs automatically. Public over the air while your AirPods are turned on and connected to your iOS device or Mac.
You can check the AirPods Max firmware by following these steps:
1- Connect your AirPods to your iOS device.
2- Open the Settings application.
3- Click on General.
4- Click on “About”.
5- Click on AirPods.
Look at the number next to "Firmware Version",