Looking round some active Mac forums, I don't think anyone received an email. I certainly didn't, however you can go to the beta page and download it.
I received an email with a code for the beta to redeem on the mac store, although I took it off because the beta kept doing a verification during bootup and slowed it down
I received an email with a code for the beta to redeem on the mac store, although I took it off because the beta kept doing a verification during bootup and slowed it down
I've been running it for a couple weeks without a problem, it's been rock solid.