Apple doesn't release AirPods firmware updates on a regular schedule. Instead, updates are pushed out as needed to address issues or introduce new features. To ensure you're always running the latest firmware, keep your AirPods connected to your iOS device when not in use. Regularly check your AirPods' firmware version in the Settings app. Ensure your iOS device is connected to Wi-Fi and near your AirPods to facilitate automatic updates. Remember, there's no manual way to update AirPods firmware. The process happens automatically when conditions are met.