> [...]every six weeks you'll get this ping, you need assess what changed and whether you need to take action.

Rust's stability guarantees mean that you don't need to take any action at all.

Breaking changes (unless soundness is involved) only happen with editions and even when a new edition comes out and you update the compiler, you still don't need to do anything unless you explicitly change the configuration of the project to the new edition.

The only thing you might want to do, if you use clippy (a linter that comes with the rust toolchain). Is to check whether it complains about your code due to new check. If that's the case, you get told what to change and why.