Announcing Rust 1.94.1
The Rust team has published a new point release of Rust, 1.94.1. 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 1.94.1 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 1.94.1 Rust 1.94.1 resolves three regressions that were introduced in the 1.94.0 release. Fix std::thread::spawn on wasm32-wasip1-threads Remove new methods added to std::os::windows::fs::OpenOptionsExt The new methods were unstable, but the trait itself is not sealed and so cannot be extended with non-default methods. Clippy: fix ICE in match_same_arms Cargo: downgrade curl-sys to 0.4.83 This fixes certificate validation error for some users on some versions of FreeBSD. See this issue for more details. And a security fix: Cargo: Update tar to 0.4.45 This resolves CVE-2026-33055 and CVE-2026-33056 . Users of crates.io are not affected. See blog for more details. Contributors to 1.94.1 Many people came together to create Rust 1.94.1. We couldn't have done it without all of you. Thanks!
The Rust programming language community has released a new point update, Rust 1.94.1, addressing several issues that arose in the previous version, 1.94.0. This release is a testament to the collaborative efforts of the Rust team and its contributors, who have worked diligently to ensure the stability and reliability of the language.
For users who have Rust installed via rustup, updating to version 1.94.1 is straightforward. Simply running the command `rustup update stable` will fetch and install the latest version. Those who do not yet have rustup can obtain it from the official Rust website.
Rust 1.94.1 focuses on resolving three regressions introduced in the 1.94.0 release. The first fix addresses an issue with `std::thread::spawn` on the `wasm32-wasi-threads` target. This target is used for compiling Rust code to WebAssembly (WASM) with threading support, and the fix ensures that the spawning of threads works correctly.
The second change involves removing new methods added to `std::os::windows::fs::OpenOptionsExt`. Although these methods were marked as unstable, the trait itself is not sealed, meaning it cannot be extended with non-default methods. By removing these methods, the Rust team ensures that the trait remains stable and compatible with future updates.
Another critical fix in this release is related to Clippy, Rust's linter tool. A recent change in Clippy introduced an Internal Compiler Error (ICE) in the `match_same_arms` analysis. This fix addresses the ICE, ensuring that Clippy operates smoothly and continues to help developers write safer and more efficient Rust code.
In addition to these fixes, Rust 1.94.1 includes updates to the Cargo package manager. One notable change is downgrading the `curl-sys` crate to version 0.4.83. This downgrade resolves a certificate validation error that affected some users on FreeBSD systems. The issue has been documented, and users experiencing problems are encouraged to refer to the associated issue for more details.
Furthermore, Rust 1.94.1 includes a security update to the `tar` crate, upgrading it to version 0.4.45. This update addresses two vulnerabilities, CVE-2026-33055 and CVE-2026-33056. While these issues do not affect users of crates.io, it is essential for the Rust ecosystem to address such security concerns promptly. Detailed information about these vulnerabilities and their resolution can be found in the Rust blog.
The Rust team acknowledges the contributions of the community in bringing Rust 1.94.1 to life. The release would not have been possible without the dedication and hard work of countless contributors. As the Rust language continues to evolve, the collaborative spirit of its community remains a driving force behind its success.
In conclusion, Rust 1.94.1 is a critical update that addresses several regressions and security vulnerabilities. By resolving these issues, the Rust team ensures that the language remains a reliable and efficient choice for developers building a wide range of applications. With its ongoing commitment to stability and security, Rust continues to solidify its position as a leading programming language in the industry.
