Xcode 15 beta 7 does not allow uploading TestFlight Builds?

I was able to upload builds using Xcode 15 beta 6, but with beta 7, I have started getting this error:-

Unsupported Xcode or SDK Version. Your app was built with a version of Xcode or SDK that is not yet supported for upload to App Store Connect. For more information about supported versions of Xcode and SDK for Testflight or App Store submissions, view the App Store Connect What's New page (https://developer.apple.com/app-store-connect/whats-new/). (ID: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX)

Any ideas?

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We probably have to wait. I think the same issue applied to the previous version of Xcode 15 beta as well. It took some time until App Connect started to accept its builds.

5 days later and we keep getting a similar error trying to upload a macOS TestFlight build:

This bundle is invalid. Apple is not currently accepting applications built with this version of the OS.

This used to be an issue only traditionally, when TestFlight was not yet available for macOS. But both Xcode 15 b7 and macOS 14 beta 6 are a week old now, so this should just work. Very annoying

Hello, we'd like to investigate this issue but need some further info to help diagnose. If any of you are having this specific issue could you please file a Feedback Assistant at https://developer.apple.com/bug-reporting/ please include any logging information that would help us look into the issue, including any error codes in the error message and the ID of the app that you are uploading.

You can share the Feedback Assistant ID here with us, which will help expedite the process.

Thank you!