https://www.geeky-gadgets.com/apple-releases-ios-13-4-1-and-ipados-13-4-1-08-04-2020/
Apple releases iOS 13.4.1 and iPadOS 13.4.1 - Geeky Gadgets
Apr 8, 2020 - Apple has released iOS 13.4.1 for the iPhone and iPadOS 13.4.1 for the iPad, the update comes a couple of weeks after the release of iOS 13.4. The new iOS
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https://www.imore.com/ios-1341-fixes-problem-preventing-people-facetime-calling-old-devices
iOS 13.4.1 fixes a problem preventing people from FaceTime calling old devices | iMore
Apr 8, 2020 - People with iOS 13.4 found they couldn't FaceTime call people with older versions of macOS and iOS installed. That's all fixed in iOS 13.4.1.
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