Before diving in, a quick caution: the details below reflect the beta notes and feature roundup as provided, including Apple’s “iOS 26.4” naming and the specific build number. If any of that labeling turns out to be provisional or misreported in the original material, the feature list could shift as testing continues.

iOS 26.4 beta 1 is now in developers’ hands, and Apple has already expanded access to public beta testers as of February 17, 2026. The developer build listed is 23E5207q, delivered through the usual Software Update path in Settings.

The most sensitive change lands in Messages, where Apple has added support for testing end to end encrypted RCS messaging. In the current beta, the testing scope is narrow: it’s described as iPhone to iPhone communication specifically for RCS testing, not a broad switch across every conversation type.

Apple Podcasts also gets a noticeable upgrade, aimed at video shows. Apple describes “advanced video podcast capabilities,” built around HLS streaming, which should make it easier to move between watching and listening while the app adjusts quality based on network conditions. The beta also introduces support for dynamic video ads inside Apple Podcasts.

Music is where the update starts to feel more consumer facing. Apple is adding new full screen artwork treatments for select albums and playlists, and it’s also bringing concert discovery into the app with tools to find nearby shows and tour dates for artists already in your library. At the same time, the “Profile” area in Music has been redesigned for quicker access to common tasks, and that refreshed Profile interface is also reflected in the App Store, Apple Podcasts, and Apple TV.

There’s another Music addition tied to Apple Intelligence: Playlist Playground. In this beta, it’s presented as a way to generate playlists from text descriptions or preset prompts, positioned as a creative shortcut rather than a deeper rework of the library itself.

Across the system, Apple is reshaping the Wallpaper Gallery with cleaner separation between categories and faster responsiveness, mirroring a similar approach the company has used for watch face browsing. Reminders picks up a new Smart List focused on tasks you’ve marked “Urgent,” building on the Urgent setting introduced in iOS 26.2, where urgent tasks can trigger an alarm.

On the Home Screen, Apple is adding a new widget that offers quick access to ambient music playlists in Apple Music, a small change that hints at more emphasis on mood and background listening.

Security gets a meaningful nudge with Stolen Device Protection. According to the provided report, it is enabled by default in iOS 26.4, requiring biometric authentication when you’re away from trusted places such as home and work, plus a time delay and second biometric check for certain sensitive actions.

The App Store layout shifts again, too. One user comment notes the updates page has been pushed deeper into the account menu. Apple has also moved the Search bar back to the top of the Search tab, and the Search tab itself is now integrated into the bottom navigation bar rather than floating as its own element.

A handful of smaller changes round out the beta notes, including new Shortcuts support for setting an iPhone charge limit, Weather actions for adding and removing locations, easier visibility into who is using your personal hotspot data, and additional Sleep and Vitals data in Apple Health. The same update notes also mention iPadOS 26.4 bringing back the compact Safari tab bar, a new Freeform icon, a splash screen referencing Apple Creator Studio, code that points toward CarPlay video support, and macOS 26.4 adding a battery charge limit option plus Shortcuts integration.

As with any early beta, the mix here reads like a blend of visible refinements and groundwork for features Apple intends to spotlight later. For iPhone users, the clearest immediate impact comes from the security default change, the Music and Podcasts polish, and the steady, quiet reshaping of everyday interfaces.