Apple has released the fourth developer betas of iOS 26.5, iPadOS 26.5, watchOS 26.5, tvOS 26.5, visionOS 26.5, and macOS Tahoe 26.5, continuing its testing cycle for upcoming software updates.
This latest round follows a steady rollout schedule, with the third beta released on April 20, the second on April 13, and the initial versions arriving in late March.
Build updates
The fourth beta introduces new build numbers across platforms:
iOS 26.5 / iPadOS 26.5: 23F5069b
watchOS 26.5: 23T5568a
visionOS 26.5: 23O5468a
tvOS 26.5: 23L5469a
macOS Tahoe 26.5: 25F5068a
HomePod Software 26.5: 23L5469a
Apple also issued release candidate updates for older systems:
macOS 15.7.7 RC 2 (24G718)
macOS 14.8.7 RC 2 (23J518)
Features and changes so far
Earlier beta versions introduced and tested several updates, including:
Notification forwarding features for users in the EU
Continued development of end-to-end encrypted RCS messaging
Early groundwork for potential advertising features in Apple Maps
There were also some unexpected developments, such as Apple Intelligence features appearing in China earlier than planned, while anticipated Siri upgrades have yet to materialize.
Beta warning
As with all developer betas, Apple advises users not to install these updates on primary or mission-critical devices due to the risk of bugs, instability, or data loss. Instead, testing should be done on secondary devices with proper data backups.
For those looking for a more stable experience, public beta versions are typically released shortly after developer builds, offering improved reliability with fewer issues.