A reliable source has leaked the iOS 26 and iPadOS 26 beta 4 build number ahead of its release, which is most likely today.
iOS 26 Beta 4 with Build Number 23A5297i Likely Releasing Today with Other Pre-Release Software from Apple
Apple surprised everyone with the release of iOS 18.6 RC yesterday. But if you look at it carefully, it all starts to make sense.
On Monday, Apple released iOS 18.6 RC and other updates. On Tuesday, which is today, Apple will likely release the fourth developer beta of iOS 26 and others. While on Wednesday, Apple will release all the public betas.
What about the rest of the week? Well, everyone can spend the free time test-driving the beta.
Given that the source has leaked the build numbers of iOS 26 and other software today, Apple’s plan for the week is laid out flat on a table, and it’s a perfect one.
According to the source on X, these are the build numbers of the updates that are likely coming today:
- iOS 26 and iPadOS 26 beta 4 – 23A5297i
- macOS 26 Tahoe beta 4 – 25A5316i
- tvOS 26 beta 4 – 23J5316g
- HomePod Software Update 26 beta 4 – 23J5316g
- watchOS 26 beta 4 – 23R5317g
- visionOS 26 beta 4 – 23M5300g
I’m really excited about the fourth developer beta, because the public beta will likely be based on it, and it will give us a glimpse at what we can expect Apple to release tomorrow.
While the updates won’t be perfect compared to the RC or final build, they will be stable enough for most daily tasks such as texting, calling, browsing the web, etc. However, do expect broken third-party app support, and slightly worse battery life in some cases.
