No, your mortgage contract doesn’t change just because you’ve stopped working. Your payments stay the same, and they’re still due on the same dates, for the same amount, under the same terms you originally agreed.
What does change is your income. Moving from a salary to a pension, savings, or a mix of income sources can affect how easily you can afford those same monthly payments. Your mortgage itself hasn’t changed, but your financial circumstances around it might have.
This is why it’s important to plan ahead rather than wait for your lender to get in touch. Lenders do not tend to check in as your retirement date approaches, so the responsibility lies with you to think it through in advance. Getting ahead of it means you’ve got more options and more time to make decisions calmly, rather than reacting under pressure.