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Radar · Rust · Archive · Week 46 · Nov 10 – 16, 2025

Rust 1.91.1

Worth knowingcompiler

What changed
The Rust team announced the release of Rust 1.91.1.
Production impact
The source does not say.
Try it
Run rustc --version to verify the new toolchain is installed.
Source
blog.rust-lang.org/2025/11/10/Rust-1.91.1/

Understand it, then run it

Rust 1.91.1 is a small update that fixes two problems that appeared in the previous release, 1.91.0. One issue caused linker and runtime errors when building WebAssembly (Wasm) modules that import the same function name from different modules. The other issue broke Cargo’s ability to lock the build directory on the illumos operating system. These bugs could lead to crashes or data corruption. The update restores the correct behavior for both cases.

Written by gpt-oss-20b from the linked source · claims checked against the sources · archive, not individually reviewed