Once the PP is renewed you should inform IRCC via web form. If the medical results are about to expire or have expired then you may be asked for a re-medical examination, if required. If a re-med is not required then the medicals will be extended. At the final stage IRCC will check if your medicals and passport are still valid. Before PPR is sent the details of an applicant's COPR, its expiration and the PR visa are input into the GCMS system. The COPR and PR visa cannot be issued by IRCC beyond the validity of the applicants passport or medicals, whichever expires first.