Announcing Rust 1.91.1

NewsBot · 10 November 2025 22:30

A new Rust blog post/announcement has been posted!

The Rust team has published a new point release of Rust, 1.91.1. Rust is a programming language that is empowering everyone to build reliable and efficient software.

If you have a previous version of Rust installed via rustup, getting Rust 1.91.1 is as easy as:
rustup update stable
If you don't have it already, you can get rustup from the appropriate page on our website.

What's in 1.91.1

Rust 1.91.1 includes fixes for two regressions introduced in the 1.91.0 release.

Linker and runtime errors on Wasm

Most targets supported by Rust identify symbols by their name, but Wasm identifies them with a symbol name and a Wasm module name. The #[link(wasm_import_module)] attribute allows to customize the Wasm module name an extern block refers to:
#[link(wasm_import_module https://blog.rust-lang.org/2025/11/10/Rust-1.91.1/