As others have posted, Southwest is still making changes in November and December flight schedules. Some email notices advising of changes to booked flight(s) have been sent, but not for all reservations. Since they appear to be consolidating flights, due to continued reduced bookings, I highly recommend checking any upcoming November/December reservations for changes. Sometimes, it's just a minor change in time/flight number, while other times it changes from a nonstop/direct flight to connecting flights, or a major change in departure time. It looks like sometimes they are substituting larger capacity 737-800 aircraft (not the MAX), in place of the slightly smaller 737-700s, to partially make up for dropped flights. Reminder - if you look up your reservation and see that your flight was changed, you are allowed to change to another flight on that route, on the same day, or within 30 days, either way of your original date, without a change in fare; this can be done online, or you can call for assistance. If you decide to call, however, there could be long hold times.
With reduced capacity, it's a good idea to check this out ASAP, while seats on preferred flights are still available. The changes are not always bad news - sometimes, the changes work out better, than the original plans.
Note: If the federal government does not immediately provide continued financial relief to the airlines, look for all of the airlines to make major cuts to their schedules, over the coming months. Their funding ends today, unless there is last-minute action.