Apple has released iOS 26.4 beta 1 to developers, beginning the next phase of testing for iOS 26. Unlike earlier updates that introduced noticeable user-facing additions, this release is a smaller, groundwork-focused update aimed at improving messaging infrastructure and system stability.
To set expectations, iOS 26.4 beta 1 does not bring major interface redesigns, new system apps, or large Apple Intelligence features. Instead, Apple appears to be refining core technologies behind the scenes while preparing for bigger changes in future betas.
Here is everything new in iOS 26.4 beta 1 so far.
Encrypted RCS Messaging Testing
The biggest change in iOS 26.4 beta 1 relates to Messages.
Apple is testing end-to-end encryption for RCS messaging, building on the RCS support that started with iOS 18. The feature is currently limited to testing and not yet available to all users.
This means:
- Apple is working to improve privacy in RCS conversations
- A new system toggle allows developers to enable encryption testing
- Encrypted chats can show secure conversation indicators
- The feature remains under development and may arrive in a later update
This move brings cross-platform messaging closer to the privacy standards users already expect from iMessage.
Messages App Adjustments
Along with encrypted RCS testing, Apple has made some small changes to the Messages framework.
These include:
- Updated conversation indicators tied to encryption status
- Messaging infrastructure updates
- Backend refinements supporting future communication features
Most users won’t see any visual changes yet because these updates are mostly technical.
Video Podcasts Receive a Major Upgrade
iOS 26.4 beta 1 brings notable updates to the Podcasts app, with Apple improving how video podcasts are discovered and played on iPhone. The update enhances playback behavior for shows that include video, making transitions between audio and video formats smoother.
With this update, Apple appears to be positioning Podcasts as a stronger multimedia platform, allowing creators to deliver richer content without relying on third-party apps.
New Emoji Characters
OS 26.4 beta 1 also adds support for new Unicode emoji characters, which is a common addition in mid-cycle updates.
Reported additions include:
- Orca
- Treasure chest
- Trombone
- Landslide
- Bigfoot
New emojis usually become fully available in later beta releases as Apple finishes the designs and ensures compatibility.
Performance Improvements and Bug Fixes
As expected for an early beta, Apple has made several system-level improvements:
- General performance optimizations
- Stability enhancements
- Bug fixes across system apps
- Updated internal frameworks for developers
These updates prepare iOS for larger features expected later in the release cycle.
The Siri Overhaul Is Still Missing
One notable absence in iOS 26.4 beta 1 is Apple’s next-generation Siri experience.
Recent reports suggested Apple was working on deeper AI integration and smarter contextual responses. None of those upgrades appear in this beta, suggesting the company may introduce them in a later iOS 26 release.
For now, Siri remains unchanged compared to previous versions.
Should You Install iOS 26.4 Beta 1?
Developers and beta testers interested in early messaging improvements can install the update now. Regular users will notice very few visible changes, so it is reasonable to wait for later betas, where more features typically appear.
What do you think about this update and the missing Siri overhaul? Share your thoughts in the comments below.
