Then you shouldn't take the word of a random person but from the Semantic Versioning guidelines. If you're not following the semantic versioning guidelines then you're doing it wrong.
> Especially when there are some conflicting reports out there i.e. there are many super-awesome libraries that only work with nightly (I think it's called), because many of those maintainers are early adopters that love to try out new features.
Totally irrelevant. Very few libraries, if any, require a nightly compiler. The libraries that do offer features that require a nightly compiler have those features as optional. Anyway, once the new Macros update releases, the need for that nightly compiler will go away. These libraries are just taking advantage of compiler plugins.