I believe at this point V9 is only available to Early Access Program members, I received an email right before the upgrade got installed. Since then I got another update and I am now in 2018.39.6.1
I have a MX delivered in June 2018
Nope. Not early access. The press has been discussing it for weeks. If it was early access, all this chatter would violate the NDA Early Access participants must agree to. Even mentioning the existence of, or your participating in the early access program, is a violation of that agreement.