--- title: "What's New in Rust 1.72-1.78 Rustacean Station marathon" url: https://daily.dev/posts/what-s-new-in-rust-1-72-1-78-rustacean-station-marathon-rpbo3aslt source_url: https://www.youtube.com/watch?v=VpSXTJXX1YA type: video:youtube source: "Jon Gjengset" published: 2026-05-31T07:48:46.431Z updated: 2026-05-31T09:14:28.376Z tags: ["rust"] reading_time: 363 upvotes: 0 comments: 0 language: 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. # What's New in Rust 1.72-1.78 Rustacean Station marathon **[Jon Gjengset](https://daily.dev/sources/jonhoo)** · 363 min read · 0 upvotes · 0 comments ## Summary A live-streamed marathon podcast episode covering Rust releases 1.72 through 1.78. The hosts walk through release notes for Rust 1.72 and 1.72.1, discussing key changes including improved error messages for cfg-disabled items, removal of the const evaluation step limit (now 2 million interpreter steps), uplifted Clippy lints, mpsc Sender now implementing Sync, string::leak stabilization, rustdoc search improvements including function signature search, cargo build script namespace changes (cargo:: prefix), cargo resolver version warnings, and let-else formatting fixes in rustfmt. The episode also includes a live documentation PR to the Rust standard library explaining when string::leak is preferable to into_boxed_str. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [This Week in Rust 656 · This Week in Rust](https://daily.dev/posts/this-week-in-rust-656-this-week-in-rust-buyokxegr) · This Week in Rust · 28 upvotes · 1 comments - [This Week in Rust 622 · This Week in Rust](https://daily.dev/posts/this-week-in-rust-622-this-week-in-rust-djku7y8q8) · This Week in Rust · 3 upvotes · 0 comments --- Tags: [#rust](https://daily.dev/tags/rust) [View this post on daily.dev](https://daily.dev/posts/what-s-new-in-rust-1-72-1-78-rustacean-station-marathon-rpbo3aslt)