Your code will always compile with newer versions of the compiler. It will never break when you upgrade your compiler. (Modulo bugs that are rare and fixed quic

Your code will always compile with newer versions of the compiler. It will never break when you upgrade your compiler. (Modulo bugs that are rare and fixed quickly). The 6-year old Rust 1.0 stability guarantee still holds. > Can I for example compile with the latest Rust compiler 1,2,..6 year old code? Yes. There have been some backward incompatible changes, but those are opt-in. So it wouldn't affect you.