AirPods get new firmware updates all the time, often just to fix minor bugs that affect a small number of users. Other updates provide necessary improvements required to provide new features coming in ...
More than a decade later, a reverse-engineered look at iOS 4.0.1 shows how Apple recalibrated signal bars without needing to change the iPhone 4 design.
Some users who experienced issues with Apple Intelligence on the iPhone 17 were reportedly able to resolve them by themselves.