[superkuh]

> It should be old and nothing should ever change

Bash gets new features, forwards incompatible features, fairly regularly still. It changes almost as much as Rust. But guess what? Bash devs don't expect that it's only other Bash devs using the latest bleeding edge version from last month. They, in general, write code that will work anywhere any time.

Rust code could be written in this way. But it it isn't because of the type of demographic that current writes in Rust. I have confidence this will change over the next decade. But right now, fast forwards incompatible changes combined with fast forwards incompatible devs makes for a very limited lifespan of any rustc. And that leads to the vast majority of the documentation suggesting curl | sh. You don't get that with other languages.

I'm not arguing for no change ever. That's silly. I'm arguing for not writing for the bleeding edge just because you can.