Rust has a very strict backwards compatibility policy, and as a result has had ~0 breaking changes since 1.0, with the notable exception of opt-in Rust 2018 edi

Rust has a very strict backwards compatibility policy, and as a result has had ~0 breaking changes since 1.0, with the notable exception of opt-in Rust 2018 edition. Best practises might get out of date, but generally speaking nothing breaks between releases.