Apple has released new firmware for the first-generation AirPods Pro, following after a December update to the second-gen model.
The update for the AirPods Pro brings the firmware up to version 6.0, build number 6A321. By contrast, the December firmware update affecting the AirPods Pro 2 raised the version to 6.1.34.
Apple doesn't provide release notes for AirPods updates, but the firmware generally includes performance improvements and bug fixes rather than feature changes.
While you can manually force an update of an iPhone or iPad, you can't do the same with AirPods. Instead, the firmware will install automatically while the AirPods are recharging in the charging case, and with a connected iOS device nearby.
How to check your AirPods firmware version
AirPods users can check the current firmware for their audio accessories by accessing the Settings app on their iPhone or iPad.
Source: AppleInsider