The Rust programming language has just released version 1.91, bringing some notable updates. The most significant change is giving Windows on Arm64 the top-tier support status. This means developers working on 64-bit Arm systems running Windows now get the highest level of reliability and testing. The Rust team runs its full test suite on these platforms for every change, helping to catch issues early and keep things stable.

Improved Safety and New Features

Rust 1.91 also introduces a new lint that warns about raw pointers to local variables being returned from functions. While Rust’s borrow checker already prevents many bugs like dangling references, it doesn’t check raw pointers. This new warning adds an extra layer of safety, helping developers avoid potential errors that could lead to crashes or undefined behavior.

Alongside these safety improvements, the update stabilizes 60 APIs and makes seven APIs stable within const contexts. This means developers can now confidently use these APIs as part of the language’s standard library without worrying about future changes. Additionally, the release stabilizes a configuration setting called build.build-dir in Cargo, Rust’s package manager. This makes it easier for developers to control where build artifacts are stored, simplifying project management.

Looking Ahead and Continued Progress

Rust 1.91 follows the September 18 release of Rust 1.90, which added native support for workspace publishing in Cargo. The language keeps growing in popularity, especially for projects that require speed and memory efficiency. Rust is a popular choice for building high-performance services and embedded devices because it doesn’t have a runtime or garbage collector.

With each update, Rust moves closer to its goal of becoming a leading language for systems programming. Its focus on safety, speed, and reliability makes it attractive for developers working on critical systems and performance-sensitive applications. The ongoing work by the Rust team shows a commitment to improving the language and expanding its capabilities.

Overall, Rust 1.91 is a major update that enhances support for Windows on Arm64 and introduces important stability features. The language’s growth and new features suggest that Rust will continue to be a strong choice for developers looking for a fast, safe, and reliable programming language for the future.

Inspired by

• https://www.infoworld.com/article/4082150/rust-1-91-promotes-windows-on-arm64-to-tier-1-target.html

Sources

• rust-lang.org