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Apple Releases iOS 15.4, iPadOS 15.4, macOS 12.3 Monterey, watchOS 8.5, tvOS 15.4, and HomePod Software 15.4 - TidBITS
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iOS 15.4 is slated to bring the most keenly-awaited Apple features to iPhones - NotebookCheck.net News
KigaliTech Services - iOS 15.4 adds the ability to unlock with Face ID while wearing a mask on iPhone 12 and newer. This update also includes new emoji, a new voice option
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