Apple has released the fourth beta version of its upcoming software updates, including iOS 16.6, iPadOS 16.6, watchOS 9.6, macOS Ventura 13.5, and tvOS 16.6. These updates come two weeks after the release of the third betas, indicating Apple’s continued progress in refining the new features and addressing any reported issues.
How to update?
Developers who have registered for the beta program can access and download the updates through the Settings app. By navigating to “Software Update” and enabling the option for beta updates, developers can gain access to the latest versions. It’s important to note that the installation requires the Apple ID associated with their developer account.

Key Features
One notable feature introduced in iOS 16.6 and iPadOS 16.6 is the iMessage contact key verification. This feature aims to enhance security and ensure Apple device owners have confidence in their messages’ authenticity. It specifically targets individuals who may face significant digital threats, such as journalists, human rights activists, and government officials. By verifying the iMessage contact key, users can safeguard their conversations against potential interception or eavesdropping by malicious actors.
While iMessage contact key hints were available in the first beta, the feature was not fully enabled. Apple has stated that the complete iMessage contact key verification functionality will be available on iPhones and other Apple devices in 2023, making it one of the anticipated highlights of iOS 16.
With the release of the fourth betas, Apple continues to refine its software updates and incorporate valuable feedback from developers. These iterative releases pave the way for a more polished and secure user experience, ensuring that Apple’s ecosystem remains at the forefront of innovation and user protection.