Yeah, but I’m not going to say it won’t drop today yet. Sometime’s they’ve dropped at 11:00 Cupertino time and even later. Also, it could drop tomorrow. Less common, but it has happened.
I can’t recall any time that a beta has dropped at 11am pacific time. 10 am (and within 20-30 minutes after) and (rarely for a developer beta) 1pm.
We still have a brief window today, but it may be tomorrow or next Tuesday.