This Video is related to iOS 16.3.1 Time Stamps 0:00 iOS 16.3.1 0:15 Update size 0:35 Supported devices 1:05 Build number 1:37 What’s new ? 3:50 Modem firmware 4:05 Bug Fixes 4:35 Performance 5:02 Heating 5:25 Battery Life 6:17 Should you install iOS 16.3.