iOS 26.4 puts your iPhone in anti-theft mode by default

OS 26.4 enables Stolen Device Protection by default, adding biometric verification and security delays to critical iPhone settings, alongside encrypted RCS and Podcasts video support.

iOS 26.4 Beta 1: Apple Music Gets New AI-Powered Playlist Playground Feature

After a playlist is generated, users can continue to fine-tune it with follow-up prompts without starting over.
Tech Times

iOS 26.4 Beta Lets You Generate Custom Apple Music Playlists Instantly Using Just Text Prompt

Apple Music's new Playlist Playground in iOS 26.4 beta lets users create fully personalized playlists from a simple text prompt for instant music curation.

Apple Music 'Playlist Playground' in iOS 26.4 Creates Playlists From Text Prompts

The iOS 26.4 update that Apple is beta testing includes a new "Playlist Playground" feature in the Apple Music app that's designed to let users create a playlist with a text-based prompt. In the Apple Music app,

Apple Music Will Soon Let You Generate Playlists With AI

It is similar to AI playlist generators from other streaming services like Spotify and YouTube Music.
Absolute Geeks

Apple Music tests AI playlist generator with playlist playground in iOS 26.4

Apple is preparing to introduce an AI playlist generator inside Apple Music, expanding its push into personalized listening tools. The feature, called Playlist Playground, is currently available