Rustup 1.28.0 has been released! ✨

This release comes with many improvements and additions.

For those using `rustup` in CI: Please note that rustup will no longer automatically install the toolchain from `rust-toolchain.toml`. Make sure to run `rustup toolchain install` if necessary.

See the blog post for all the updates: https://blog.rust-lang.org/2025/03/02/Rustup-1.28.0.html

Update: The original behavior, automatically installing the toolchain from `rust-toolchain.toml`, will be restored in rustup 1.28.1, to be released soon.