I think you may have misunderstood how the internet works… 
They said, either the 10th or the 12th. It’s still the 10th. Unless nothing happens, it’ll be the 12th…jeezzzz people!
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As has been mentioned in this and other posts, Patch 3 is scheduled for today (12/10) or Thursday (12/12):
You can monitor News & Announcements for information about the patch.