I just received an email notification of itinerary change.
What I had when I made the reservation was:
Oct 29 Montreal, Quebec
Oct 30 Montreal, Quebec 6:00 PM
Oct 31 Quebec City, Quebec 7:00 AM 6:00 PM
Nov 01 Saguenay, Quebec 7:00 AM 4:00 PM
Nov 02 At Sea
Nov 03 Sydney, Nova Scotia 10:00 AM 6:00 PM 9:00 PM
Nov 04 Halifax, Nova Scotia 11:00 AM 8:00 PM
Nov 05 Shelburne, Nova Scotia 7:00 AM 3:00 PM
Nov 06 Boston, Massachusetts 8:00 AM 4:00 PM
Nov 07 Newport, Rhode Island 11:00 AM 7:00 PM
Nov 08 New York, New York 8:00 AM
Nov 09 New York, New York 4:00 PM
Nov 10 At Sea
Nov 11 Charleston, South Carolina 10:00 AM
Nov 12 At Sea
Nov 13 Miami, Florida 6:00 AM
The email now shows the updated itinerary as:
DAY
DATE
PORT
Wed
Oct 29
Montreal, Quebec
Thurs
Oct 30
Montreal, Quebec
Fri
Oct 31
Quebec City, Quebec
Sat
Nov 1
Saguenay, Quebec
Sun
Nov 2
At Sea
Mon
Nov 3
Sydney, Nova Scotia
Tues
Nov 4
Halifax, Nova Scotia
Wed
Nov 5
Boston, Massachusetts
Thurs
Nov 6
Boston, Massachusetts
Fri
Nov 7
Newport, Rhode Island
Sat
Nov 8
New York, New York
Sun
Nov 9
At Sea
Mon
Nov 10
Charleston, South Carolina
Tues
Nov 11
At Sea
Wed
Nov 12
Miami, Florida
Looks like Shelburne, Nova Scotia was replaced by an extra day in Boston and one day in New York was removed, thus shortened by one day arriving Nov 12 in Miami now instead of Nov 13.