This year, if I update my Mac to the MacOS 26 Tahoe beta, will I still be able to ship app updates to the App Store using Xcode 16.4 until Xcode 26 is GM? Thanks!
Can I ship app current updates from MacOS 26 Tahoe beta?
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Shipping release software to your customers through the App Store using any beta components isn't supported — that includes when your app is build using a beta version of Xcode, and when Xcode is hosted on a beta version of macOS as your build environment.
— Ed Ford, DTS Engineer
While you can’t submit apps to the App Store directly from macOS 26 (Tahoe) beta, you can still ship app updates using Xcode Cloud, which runs on stable macOS and Xcode versions. This allows you to continue submitting builds to App Store Connect even if your local development machine is running a beta OS.