Returned to Zorin how to add purchase code?

[rolltide101x]

Upgrade to PRO from Core

Hi everyone. I'm fairly new here, just transitioned from Windows and i decided to completely turned to Linux as it fits my usage for basic computing on a fairly decent old laptop. My question was, is it possible to upgrade later into PRO while on the free version. What happened later when they release Zorin 17, do i still need to repurchase a new ones later? Thanks in advance.

Apparently it is possible.