This question only refers to changes that happened within the tax year. If you are doing your income tax for 2019, and you were a resident for all of 2019, then there was no change.

If you are unsure of your residency status, you will need to contact the Canada Revenue Agency (CRA) and confirm: https://turbotax.community.intuit.ca/community/federal-taxes/help/how-do-i-contact-the-canada-revenu...