Those are not completely different things. I know it’s only 5 years, and while I know it has occurred, I personally have never had a breakage in my Rust codebas

Those are not completely different things. I know it’s only 5 years, and while I know it has occurred, I personally have never had a breakage in my Rust codebases due to undefined behavior. That is a stronger guarantee being made by Rust than C or C++ have made.