There was a thread a while back which covered the various variants of Ada and how their memory management contrasts with that of Rust: https://news.ycombinator.com/item?id=14210258

Basically: no, it likely hasn't changed much since you learned it, unless that was genuinely decades ago. But there are various solutions (or, at least, ideas which are considered solutions, depending on what you consider the problem to be) that you might have missed!