Apple has released two new firmware updates for AirPods 4 and Pro 2. This is the first update for AirPods 4.
AirPods 4 build number is 7A304
AirPods Pro 2 Build Number – 7A302
What’s new in these firmwares is still unknown. Earlier, Apple announced a new feature for AirPods Pro 2, one of which turns the headphones into a hearing aid.
AirPods update automatically when connected to your iPhone.
How to Update AirPods Faster
1. Connect headphones to iPhone
2. Place them in the case and connect them to the charger.
3. Wait 5 minutes
You can view the firmware version via Settings → General → About → AirPods.
Source: Iphones RU

I am a professional journalist and content creator with extensive experience writing for news websites. I currently work as an author at Gadget Onus, where I specialize in covering hot news topics. My written pieces have been published on some of the biggest media outlets around the world, including The Guardian and BBC News.