Apple has released the first beta versions of its next-generation operating systems – iOS 26.4, iPadOS 26.4, macOS 26.4, tvOS 26.4, visionOS 26.4, and watchOS 26.4 – to developers on . The releases signal Apple’s continued iterative development cycle, focusing on refinement and preparation for features slated for wider rollout later this year.
These beta versions are primarily intended for app developers to ensure compatibility and test functionality within the evolving Apple ecosystem. Apple encourages developers to confirm their applications function as expected on the new builds and to leverage Xcode 26.4 beta, which includes the latest SDKs, to take advantage of advancements within the operating systems.
While the iOS 26.4 beta 1 doesn’t introduce a sweeping redesign akin to previous major iOS releases, such as the “Liquid Glass” redesign of iOS 26, it focuses on expanding existing features, bolstering privacy and security, and laying the groundwork for future capabilities. The update is described as a “relatively small update” but includes several notable changes.
Early RCS Encryption Support
A key addition in iOS 26.4 is early testing support for end-to-end encrypted RCS (Rich Communication Services) messaging. Currently, a toggle within the Settings > Messages > RCS Messaging section allows developers to enable encrypted RCS chats. When activated, these conversations will display a lock icon, visually indicating the enhanced security. However, it’s crucial to note that this functionality is limited in the current beta. It’s not universally available across all devices or carriers, representing an initial step towards broader encrypted RCS support in a future update.
RCS has been positioned as a successor to SMS and MMS, offering features like read receipts, typing indicators, and high-resolution media sharing. The move towards end-to-end encryption for RCS messaging addresses a significant privacy concern, bringing it in line with other popular messaging platforms. Apple’s implementation, even in this early beta stage, is a notable development in the ongoing evolution of mobile messaging standards.
Enhanced Device Protection
The iOS 26.4 beta also includes changes to Stolen Device Protection, a feature designed to deter theft and protect user data. Details regarding the specific enhancements to this feature were not provided in the available source material, but the inclusion suggests Apple is continuing to prioritize device security.
Apple Podcasts Updates
New video capabilities have been added to Apple Podcasts within the iOS 26.4 beta. This allows podcast creators to incorporate video content into their shows, offering a more engaging and immersive listening experience. The addition of video support to Apple Podcasts aligns with the growing trend of multimedia content consumption and provides podcasters with a new avenue for creative expression.
Under-the-Hood Tweaks and Developer Focus
Beyond these headline features, iOS 26.4 incorporates a number of “under-the-hood tweaks” that signal Apple’s future direction. These changes, while not immediately visible to end-users, provide developers with insights into upcoming APIs and functionalities. The beta release serves as a crucial testing ground for these advancements, allowing developers to adapt their applications and prepare for future iOS releases.
It’s important to remember that these beta releases are intended for developers and are not recommended for everyday use. Early builds often contain bugs that can lead to app crashes, battery drain, and overall system instability. Apple advises against using developer betas on primary devices, suggesting instead that users install them on secondary devices for testing purposes. The company also provides avenues for developers to submit feedback and report issues, contributing to the refinement of the operating systems before their public release.
The availability of betas for all major Apple platforms – iOS, iPadOS, macOS, tvOS, visionOS, and watchOS – underscores the interconnected nature of the Apple ecosystem. Developers building applications for multiple Apple devices can test their compatibility across the entire range of platforms, ensuring a consistent user experience.
Release notes and downloads for all the beta versions are available through the Apple Developer website. Developers can also find resources on testing beta operating systems and submitting feedback to Apple.
