Today's mail included my previous passport. The new passport arrived a few days ago, and they send the old canceled passport separately. I'll put that away with its stamps as a reminder of past travel.
I was happy when I collected the mail on the way home yesterday to receive my renewed passport. It thus only took them about six weeks to process it. Now I know I'll be able to go to Canada for Pemmi-Con. The next challenge will be getting a visa to go to Chengdu.