iOS 14.4 has started rolling for iPhone and iPad users. It does not provide any major improvement. It includes new enhancements in the Settings menu that will allow the user to prioritize the type of third-party audio devices that are connected to the iPhone through Bluetooth. This will allow the iPhone to properly measure headphone audio levels by sending alerts in case the level is dangerous for the human ear.
Apple has also enhanced the camera app so it can recognize QR codes that are smaller in size and there’s a new warning if someone replaces the original iPhone 12 components with non-Apple parts, then it will recognize it and inform the user about it.