This was updated just yesterday:
https://www.canada.ca/en/immigration-refugees-citizenship/services/coronavirus-special-measures.html
If you’ve been approved for permanent residence Latest update: March 15, 2020
If your permanent residence application has been approved, but you can't travel to Canada before your documents expire, use the web form to tell us why you can’t travel.
Once it’s possible for you to travel, use the web form to let us know. We’ll then give you more detailed instructions regarding restarting the processing of your permanent residence application.
If your confirmation of permanent residence has already expired
Use the web form to explain why you couldn’t travel.
Once it’s possible for you to travel, use the web form to let us know. We’ll then give you more detailed instructions regarding restarting the processing of your permanent residence application.
https://www.canada.ca/en/immigration-refugees-citizenship/services/coronavirus-special-measures.html
If you’ve been approved for permanent residence Latest update: March 15, 2020
If your permanent residence application has been approved, but you can't travel to Canada before your documents expire, use the web form to tell us why you can’t travel.
Once it’s possible for you to travel, use the web form to let us know. We’ll then give you more detailed instructions regarding restarting the processing of your permanent residence application.
If your confirmation of permanent residence has already expired
Use the web form to explain why you couldn’t travel.
Once it’s possible for you to travel, use the web form to let us know. We’ll then give you more detailed instructions regarding restarting the processing of your permanent residence application.