[LexiMax]

> Compiler vendors are free to chose what ABI stability their C++ implementations provide.

In theory. In practice the standards committee, consisting of compiler vendors and some of their users, shape the standard, and thus the standard just so happens to conspire to avoid ABI breakages.

This is in part why Google bowed out of C++ standardization years ago.

[pjmlp]

I know, but still go try to push for ABI breaks on Android.