Tbh, for stable rust you don't need to do anything. Breaking changes to the stdlib or the compiler are incredibly rare (because the rust team tests against publ

Tbh, for stable rust you don't need to do anything. Breaking changes to the stdlib or the compiler are incredibly rare (because the rust team tests against public crates to see if there is breakage). You will get broken code if you rely on nightly features or if you change edition. My nightly code breaks about once every few weeks but everytime one or two features begin moving into stable and it gets closer to being on pure stable rust, not requiring any unstable things anymore. So really, if you're writing rust to against stable rustc, you don't need to pay attention to much.