Apple is now on the fifth round of milestone operating system testing, providing developer beta testers more builds of iOS 16 and iPadOS 16.
The newest builds can be downloaded via the Apple Developer Center for those taking part in the test program or as an over-the-air update on devices running the beta software.
Public beta versions of the developer builds generally arrive shortly after the developer counterparts. They can be acquired from the Apple Beta Software Program website.
The fourth developer betas for iOS 16 and iPadOS 16 landed on July 27, following the third from July 6, and the second round from June 22. The first arrived after the WWDC keynote on June 6. Final public versions are expected to be released by the fall.
The fourth build for iOS 16 and iPadOS 16 is build number 20A5339d, replacing the fourth build, 20A5328h.