How to use the best new features in iOS 18.4

Apple typically pushes out major iOS upgrades every September, alongside new iPhones--you may recall the launch of iOS 18. Those big software upgrades are followed by'point' releases that squash outstanding bugs, improve security and stability, and occasionally introduce new features. That's the case with iOS 18.4, which brings more with it than most minor iOS updates. From extra tools in Image Playground, to ambient music to relax you or send you off to sleep, here's what's new in the iOS 18 update. Apple Intelligence can now prioritize iPhone notifications, selecting which you need to see first and create AI-written summaries.