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I signed up again just in case, but I wonder whether you need to signup if you participated in previous OSX Public Betas?
 
You don't need to sign-up again. If you log-in to the beta page with your existing account, you will see that they tell you they will email you when El Capitan and iOS9 are available for download.
 
You don't need to sign-up again. If you log-in to the beta page with your existing account, you will see that they tell you they will email you when El Capitan and iOS9 are available for download.

Correct :) Can't wait, I'm very excited! The Yosemite public beta was a wonderful experience, I'm very curious if the El Capitan improvements will 'complete' my macbook.
 
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