Apple's iOS 16.3 update for iPhone had impressive new features, but iOS 16.4 might impress you even more. The latest update for iPhone already has more upgrades than its predecessor, and it's currently only in its first beta stage. Apple has said that the iOS 16.4 software update will become available for everyone in the spring, so there's plenty of time to expand the new feature set even more. To try out all the new features, you can install the iOS 16.4 beta on your iPhone. If not, you can still get a glimpse below of what's to come when the stable release hits your device. We'll keep... more