Yes it very likely would have. Most libraries have their types shipped alongside the JS, and if that's where the change was, it would have been caught during bu

Yes it very likely would have. Most libraries have their types shipped alongside the JS, and if that's where the change was, it would have been caught during build. I'd argue that even if the types for the changed package were from DefinitelyTyped, it probably still would have solved the issue if the developer had just blindly updated some package versions-- they likely just upgraded everything, ignoring semver.