--- title: Rust 1.94.0 Release: Key Features and Enhancements description: Rust 1.94.0 is now available with several notable additions. The `array_windows` method is stabilized for slices, enabling iteration over constant-length... canonical: https://daily.dev/posts/rust-1-94-0-release-key-features-and-enhancements-clz7lt6ey twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Rust 1.94.0 Release: Key Features and Enhancements | daily.dev og:description: Rust 1.94.0 is now available with several notable additions. The `array_windows` method is stabilized for slices, enabling iteration over constant-length... og:url: https://daily.dev/posts/rust-1-94-0-release-key-features-and-enhancements-clz7lt6ey og:image: https://api.daily.dev/og/posts/ClZ7LT6Ey.png og:image:alt: Rust 1.94.0 Release: Key Features and Enhancements og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Rust 1.94.0 Release: Key Features and Enhancements **[Collections](https://daily.dev/sources/collections)** · 2 min read · 16 upvotes · 1 comments ## Summary Rust 1.94.0 is now available with several notable additions. The `array_windows` method is stabilized for slices, enabling iteration over constant-length windows with better type inference. AVX-512 FP16 and AArch64 NEON FP16 intrinsics are also stabilized. On the Cargo side, configuration files now support an `include` key for modular config management, and the TOML parser has been upgraded to v1.1 with multi-line inline tables, trailing commas, and new escape characters. Additional API stabilizations include mutation methods for `LazyCell` and `LazyLock`, `Peekable::next_if_map`, and new math constants like Euler's gamma and the golden ratio. Upgrade via `rustup update stable`. ## Content Rust 1.94.0 has been officially released, introducing several significant updates and enhancements to the language and its ecosystem. ### Key Language Features: - **Array Windows Stabilized:** The `array_windows` method is now stable for slices, allowing developers to iterate over slices with a constant length, where iterator items are returned as `&[T; N]`. This provides improved type inference and optimization compared to dynamically-sized slices. - **Stabilized Intrinsics:** The release brings stabilization for x86 AVX-512 FP16 and AArch64 NEON FP16 intrinsics. However, intrinsics relying on the unstable f16 type remain experimental. ### Cargo Enhancements: - **Config File Improvements:** Cargo now supports the `include` key in configuration files. This enables more modular and flexible configuration management across different environments and projects, with support for optional include paths. - **TOML v1.1 Support:** Cargo's parser has been updated to support TOML version 1.1. This update introduces features such as multi-line inline tables, trailing commas, new string escape characters, and optional inclusion of seconds in time formats. ### Additional Stabilized APIs: - The set of APIs that have been stabilized includes mutation methods for `LazyCell` and `LazyLock`, the `Peekable::next_if_map` method, and new mathematical constants such as Euler's gamma and the golden ratio. With this release, developers can take advantage of these new features and improvements by upgrading their Rust toolchain using `rustup update stable`. ## Community discussion Top comments from developers on daily.dev. **@judevector** · 1 upvotes > Lots of cool features, though I doubt I'll be reaching for most of them anytime soon, probably something I'll appreciate more as I mature in the language. Still, glad to see updates like this that genuinely make developers lives easier. ## Similar posts on daily.dev - [Announcing Rust 1.94.1](https://daily.dev/posts/announcing-rust-1-94-1-r8kl7pl4j) · Rust · 4 upvotes · 0 comments --- Tags: [#rust](https://daily.dev/tags/rust) [View this post on daily.dev](https://daily.dev/posts/rust-1-94-0-release-key-features-and-enhancements-clz7lt6ey) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Rust 1.94.0 Release: Key Features and Enhancements","url":"https://daily.dev/posts/rust-1-94-0-release-key-features-and-enhancements-clz7lt6ey","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/rust-1-94-0-release-key-features-and-enhancements-clz7lt6ey"},"datePublished":"2026-03-05T19:12:43.789Z","dateModified":"2026-03-06T01:59:17.809Z","description":"Rust 1.94.0 is now available with several notable additions. 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Still, glad to see updates like this that genuinely make developers lives easier.","datePublished":"2026-03-15T13:13:25.170Z","url":"https://daily.dev/posts/ClZ7LT6Ey#c-r8YmZKvdE","author":{"@type":"Person","name":"Jude Ndubuisi","url":"https://daily.dev/judevector","image":"https://media.daily.dev/image/upload/s--o64XhcS1--/f_auto/v1755785732/avatars/avatar_cV501Yh0AJJILSw4Y8yFm?_a=BAMClqZW0"},"interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1}}]} ```