Will my extension of stay be valid when I re-enter Thailand with a new passport?

Passport going to expire early next year.. 1 yr Extension of stay ends mid Aug. Planning on returning to home country (canada) in April along with getting a re-entry stamp, and then apply for new passport while in home country. Questiion/guidance: Once i get my new passport, will the previous extension to stay/re-entry permit still be valid when I re-enter the country at the bkk airiport in June ? Or is there some formal process in place that needs to occur for this transfer inorder to retain and thereafter apply for a following extension when due.