Error ITMS-90744

Because I don't know how to launch App Clips from a website(developer.apple.com/forums/thread/657921), I decided to give TestFlight a try!
I had Xcode 12 beta 3 on my Mac(10.15.4), and archived it. When I tried to distribute it, it said
I am trying to upload my build to iTunes connect, but from this morning I see this error:

ERROR ITMS-90744: "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 (developer.apple.com/app-store-connect/whats-new/)

I don't want to update my Xcode to beta 5(it takes 3 hours just to unzip the XIP!

Please help!

If I need to update Xcode, please help me in this question instead

Xcode 12 beta 5 is the current minimum requirement to upload to App Store Connect.
Error ITMS-90744
 
 
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