iOS 15.4 update is now available – these are the key features to check out - What Hi-Fi?

Everyone with a compatible iPhone can now enjoy all the new features in Apple's latest iOS 15.4 software update

iOS 15.4 has officially landed. The latest version of Apple's iOS 15 operating system brings a host of new features including a surprising new emoji. So what are the new iOS 15.4 features to check ou… [+2488 chars]

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