In addition to bringing new iPhone features to everyone, iOS 17.4 includes App Store changes like sideloading for users in the European Union.
iPadOS 17.4
It’s about… time Apple brought a digital clock widget for custom city locations
Apple has added a convenient new digital clock widget to your iPhone that you can use to check the current time for any city around the word.
Apple says App Store asking permission before it downloads is a bug that will be fixed before iOS 17.4 is released [u]
In Europe, downloading an app from Apple’s own App Store won't require an extra step after authenticating with Face ID because this is actually a bug.
iOS 17.4 lets videoconferencing apps disable inappropriate AR reactions [u]
iOS 17.4 includes a new developer API to optionally disable hand gesture reactions in third-party videoconferencing apps like Google Meet by default.
SharePlay expands to let others control music on your HomePod or Apple TV [u]
With SharePlay, you can let others control music on your HomePod or Apple TV, even if they don't have an Apple Music subscription or are not in the same room.
iPadOS 17.4 references new Apple Pencil that works with Find My
Solid evidence points to Apple Pencil 3 participating in the Find My network, allowing you to see its location on the map in the Find My app.