A large update size with a couple of feature improvements and security improvements brings iOS 17.4 on board.
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For EU countries now sideloading is enabled for the first time for iOS and you can use third-party payment merchants and other browsers without the involvement of Webkit anymore.
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new emojis, transcript in the podcast, new dynamic clock widgets, modification in stolen drive protection, improvements in Apple Music, and A new Battey details screen (only for iPhone 15 series) can be seen in this update.