I changed my passport once during the process, and the process continued for me.
I waited until the Consular sent me the next correspondence, and when I responded to their request, which was sending in the FBI clearance, I sent an accompanying letter stating that I have a new passport, and I included photocopies of the first 4 pages of the passport.
Processed continued, and I received my visa in my new passport.
It takes about 12 months to process a permanent residency application for a spouse, if during this period the passport number changes for theinvited-to-Canada-spous, would this make the application time to start over?
Thanks!