iOS 26.4 Release Candidate drops 8 new emoji and roughly 20 discrete feature changes spanning Apple Music, Reminders, accessibility, and system security. The most consequential security change: Stolen Device Protection is now enabled by default. That alone is worth noting for anyone managing devices at scale.
The Apple Music additions are the most substantial cluster. Playlist Playground gets continued development, concerts integration lands inside the app, offline music recognition works without a network connection, and full-bleed album artwork arrives alongside the ability to add tracks to multiple playlists simultaneously. Two new Ambient Music widgets also appear. Separately, Reminders gains an Urgent smart list, the App Store moves its search bar, and iCloud.com now supports search. Keyboard accuracy improvements and a Shortcuts action for charge limit management round out the functional additions.
The chapter-by-chapter breakdown by 9to5Mac's Jeff Benjamin is worth watching in full specifically for the AudioAccessoryKit and Accessory Notifications Framework sections, which hint at deeper accessory integration coming to the platform. Those two items are easy to miss in a changelog but carry forward-looking weight for developers building hardware accessories for Apple devices.
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