[FreeFull]

You could still offer the mocked APIs, but have them be opt-in. Also, having the compiler throw an error doesn't mean that an older, already compiled executable won't work.

[jonas21]

> Also, having the compiler throw an error doesn't mean that an older, already compiled executable won't work.

And when the older, already compiled executable calls the API, how do you make things "work"? That's exactly what the article is about.