Radar · Rust · Archive · Week 9 · Feb 24 – Mar 2, 2025
Rustup 1.28.0
Worth knowingtooling
- What changed
- The blog post announces the release of Rustup 1.28.0.
- Production impact
- The source does not say.
- Try it
- Run
rustup --versionto confirm you are on 1.28.0. - Source
- blog.rust-lang.org/2025/03/02/Rustup-1.28.0/
Understand it, then run it
Rustup 1.28.0 stops automatically installing the active toolchain when it is missing. Before, running any rustup command would silently pull the current toolchain. Now you must explicitly run rustup toolchain install to get it. The change is a small command‑line tweak that affects how you set up a new machine.
Run it now
// This program demonstrates the change in rustup 1.28.0: it no longer
// automatically installs the active toolchain. In a real environment,
// you would need to run `rustup toolchain install` before using a toolchain.
// Here we just print a message to illustrate the new requirement.
fn main() {
println!("In rustup 1.28.0 you must explicitly install the active toolchain.");
}
What it printed when we ran it on Rust 1.98.1 (edition 2024)
In rustup 1.28.0 you must explicitly install the active toolchain.
Run sends this program (for Solidity, the contract and its tests) to our own sandbox, where it is compiled and run once, with no network, and what it printed or the test report comes back here. Nothing is kept. Runs are counted per visitor for the day so everyone gets a turn; the details are on the legal page.
Written by gpt-oss-20b from the linked source · claims checked against the sources · archive, not individually reviewed