<p>Thinking about how Rust 1.83.0 came out four days ago, and today I realized I needed a feature in 1.83.0 so I casually upgraded my project to it, whereas when C++ comes out with a new version, I expect I'll be able to use it about four or five years after it's released, although because I've had some bad experiences in the past I like to be careful and wait no fewer than ten years</p>