Not in rust, but they did: - Add reference counting to ObjC to get rid of a lot of use after free bugs (still of course possible because it's just a language s

Not in rust, but they did: - Add reference counting to ObjC to get rid of a lot of use after free bugs (still of course possible because it's just a language suggestion and not strictly enforced like Rust or Swift) - push for adding ObjC notations to let the tooling help catch some set of bugs. Still not perfect by any means but helps a little. - created an entirely new memory safe language as Swift.