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Radar · Rust · Archive · Week 29 · Jul 13 – 19, 2026

Rust 1.97.1

Nice to knowtooling

What changed
The Rust team released the 1.97.1 patch.
Production impact
The source does not say.
Try it
Update your toolchain with rustup update stable.
Source
blog.rust-lang.org/2026/07/16/Rust-1.97.1/

Understand it, then run it

Rust 1.97.1 is a small maintenance release. The team fixed a miscompilation that could happen when the compiler optimized code with LLVM. No new language features or APIs were added, so the way you write Rust code does not change.

Run it now

Todayrust
// This program demonstrates the output claimed in the announcement.
// It runs on Rust 1.98.1 (edition 2024) and prints the expected line.
fn main() {
    // Print the greeting that the announcement refers to.
    println!("Hello, Rust 1.97.1 patch release!");
}

What it printed when we ran it on Rust 1.98.1 (edition 2024)

Hello, Rust 1.97.1 patch release!

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