Review the iOS 26.4 release notes, including Music and accessibility changes, and separate them from later RCS encryption and Siri AI announcements.
iOS 26.4 is a released update, not an upcoming beta. Apple’s release notes are the basis for this historical guide; use Software Update for the current version offered to your phone.
Correction, September 5, 2026: updated the instructions and removed unsupported guarantees, release assumptions and testing claims. This guide follows the linked documentation.
Music and everyday changes
Apple’s iOS update history lists Playlist Playground in beta, concert discovery, offline music recognition and an Ambient Music widget among the Music changes. It also describes accessibility improvements and new emoji. Check the relevant feature’s regional and service requirements rather than assuming the same experience for every device and account.
RCS encryption belongs to the later release record
The same update history identifies end-to-end encrypted RCS beta support in iOS 26.5, with supported carriers and a gradual rollout. We removed the claim that installing the public iOS 26.4 release alone enables that feature for everyone. See how to check an encrypted RCS conversation.
Security controls should be checked directly
Do not assume an update means every security setting is permanently enabled. Apple’s Stolen Device Protection guide explains setup and conditions. The earlier wording calling it “always on” for every iPhone was too broad.
Apple Intelligence is not all new in 26.4
Features can arrive across several releases. Our Apple Intelligence and iOS 26.4 article explains why earlier Writing Tools and Siri improvements should not be labeled as new here. Siri AI has a separate announcement and availability schedule.
Before updating
Back up and use Settings > General > Software Update to find the supported release. This page no longer directs readers to wait for guessed March dates or seek an older version. A phone’s software compatibility also does not establish support for every Apple Intelligence feature.
If battery use changes after an update, consult the battery troubleshooting guide rather than assuming a specific feature is responsible.
