Which is fine as long as you aren't planning to change your product at all. Yes, you can try and put it off for as long as possible, only making backwards comp

Which is fine as long as you aren't planning to change your product at all. Yes, you can try and put it off for as long as possible, only making backwards compatible changes. But it's likely at some point you'll need to change something in your API, that simply won't work with existing clients.