Canva Master Template Update Propagation

Canva master templates function as reusable starting points for team designs. The objective is a repeatable development environment in which a change to a master template propagates to designs already created from it.

It is unclear whether automatic propagation is supported, whether it depends on Canva Free versus Canva Pro, or whether a team-level permission controls the boundary between master and derived designs.

Can automatic propagation of master template updates to existing designs be enabled through any setting or API? Does this behavior differ by plan type? What permission boundary prevents derived designs from inheriting later master template changes?