AOR Oct 6, 2018, but no PPR mail for me yet. Some inland applicants do not receive a PPR email. Instead, some people get an interview invitation email. You go to the office where your interview has been scheduled, and they issue CoPR right there, without mailing any passports.
Unfortunately there seems to be a huge backlog waiting for an interview date. This is what the 2-3 month extra wait is for, after all the application processing is completed. I found out from a call centre agent that my application was provisionally "approved" 6 weeks ago, but that the wait may be for an interview date. The agent wasn't sure if this was the reason, but it might be.