I am currently on a yearly extension of stay based on being married to a Thai national. My wife & I are going to move abroad soon and I wanted to know if I have to cancel my extension before leaving or if I can simply "stamp out" at the airport.
I understand that when circumstances change that affect the reason of an extension (e.g. divorce) it's required to go to immigration and cancel said extension before leaving. However, in this case our circumstances do not change, so is my understanding correct that I don't have to go to immigration and it's fine to just leave?