You can download the first developer beta of macOS 26.4 Tahoe, watchOS 26.4, tvOS 26.4, and visionOS 26.4.
Apple Releases Beta 1 of macOS 26.4, watchOS 26.4, tvOS 26.4, and visionOS 26.4 – Now Available for Download
Apart from iOS 26.4 and iPadOS 26.4 developer betas, Apple has released beta updates for all other platforms as well. This includes the first developer beta of macOS 26.4, watchOS 26.4, tvOS 26.4, and visionOS 26.4.
Before you move forward, it’s necessary that you sign up for the Apple Developer Program in order to access the betas. It’s free if you’re willing to test out Apple’s beta software, and you can sign up here.
Download macOS 26.4 Beta 1
In order to download the macOS 26.4 Tahoe update, make sure developer beta updates are enabled on your Mac – System Settings > General > Software Updates > Beta Updates. Once enabled, download and install the latest beta from the Software Update section.
Apple says the first beta of macOS 26.4 has the following build number: 25E5207k
Download watchOS 26.4 Beta 1
Those who own an Apple Watch have to go through the same steps. First of all, make sure Developer Beta is enabled – Watch > General > Software Update > Beta Update on iPhone. Once done, download watchOS 26.4 beta 1 from the Software Update section.
watchOS 26.4 beta 1 has the following build number: 23T5209m
Download tvOS 26.4 Beta 1
Willing to test out tvOS 26.4 beta on your Apple TV? Enable developer beta first by going to Settings > System > Get Beta Updates. Once enabled, download the new tvOS 26.4 beta from the Software Updates section in System.
Apple says the new tvOS 26.4 beta has the following build number: 23L5208m
Download visionOS 26.4 Beta 1
Last but not least, visionOS 26.4 beta is also available for download, and you can start your journey by enabling the developer beta – Settings > General > Software Update > Beta Updates. Once done, download the 26.4 beta from the Software Update page.
visionOS 26.4 comes with the following build number: 23O5209m
