Almost everything in Rust 1.63.0 appears to be an improvement in the standard library. Scoped threads no longer require a third-party library, some types suppor

Almost everything in Rust 1.63.0 appears to be an improvement in the standard library. Scoped threads no longer require a third-party library, some types support "const" better, and a bunch of existing types got some useful new methods. The only real language change here is the "impl / turbofish" one, which allows something that should work, but which wasn't allowed before. I'm not sure it would be realistic to totally stop adding features to the standard library, or to stop making existing syntax work the way a Rust user would expect. I would hope that any actively maintained language does things like these.