Can submit WebExtension for Safari 14 beta to App Store now?

Must we wait until Safari 14 final is released sometime in September ?

Or can we submit to the App Store now for use with betas ?
How is it possible there is no answer after two weeks? Do Apple people work on this forum?
If you haven't already, you can submit now!
Can submit WebExtension for Safari 14 beta to App Store now?
 
 
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