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Home > Rustacean Station > What's New in Rust 1.81 through 1.84


	Podcast:		Rustacean Station
	Episode:		What's New in Rust 1.81 through 1.84
	Category:		Technology
	Duration:		02:03:14
	Publish Date:		2025-10-29 07:34:10
	Description:		Jon and Ben discuss the highlights of the 1.81 through 1.84 releases of Rust. This episode was recorded as part of a YouTube live stream on 2025-10-26, which you can still watch. Contributing to Rustacean Station Rustacean Station is a community project; get in touch with us if you’d like to suggest an idea for an episode or offer your services as a host or audio editor! Twitter: @rustaceanfm Discord: Rustacean Station Github: @rustacean-station Email: hello@rustacean-station.org Timestamps & referenced resources [@01:58] - Rust 1.81 [@02:05] - `core::error::Error` Tracking issue for generic member access `build-std` Rust project goal [@08:27] - New sort implementations PR implementing the change Repo with the research [@10:49] - `#[expect(lint)]` [@14:37] - Lint reasons [@16:18] - Stabilized APIs [@16:34] - `Duration::abs_diff` [@17:25] - `hint::assert_unchecked` [@22:36] - `fs::exists` [@25:37] - Compatibility notes [@20:40] - Split panic hook and panic handler arguments [@23:00] - Abort on uncaught panics in `extern "C"` functions [@27:01] - WASI 0.1 target naming changed [@30:10] - Fix for CVE-2024-43402 CVE announcement [@33:39] - Rust 1.82 [@33:39] - `cargo info` [@35:06] - Apple target promotions Platform support tiers [@40:10] - Precise capturing `use<..>` syntax The `Captures` “trick” Talk on `impl Trait` [@47:24] - Native syntax for creating a raw pointer Pointers Are Complicated Pointers Are Complicated II Pointers Are Complicated III [@53:43] - Safe items with `unsafe extern` [@59:32] - Unsafe attributes [@1:03:44] - Omitting empty types in pattern matching The `never` type [@1:11:33] - Floating-point NaN semantics and `const` [@1:17:41] - Constants as assembly immediates [@1:19:06] - Safely addressing unsafe `static`s [@1:22:56] - Stabilized APIs [@1:23:03] - `thread::Builder::spawn_unchecked` [@1:25:10] - Working with `MaybeUninit` [@1:25:48] - Exposed SIMD intrinsics [@1:26:14] - Changelog deep-dive [@1:26:26] - Rewrite binary search implementation [@1:27:30] - Rust 1.83 [@1:27:55] - New const capabilities [@1:31:50] - Stabilized APIs [@1:32:06] - New `io::ErrorKind` variants [@1:33:10] - `Option::get_or_insert_default` [@1:34:56] - `char::MIN` [@1:35:48] - Changelog deep-dive [@1:35:48] - Unicode 16 Emoji [@1:39:51] - Sysroot trim-paths [@1:41:31] - `cargo update` informs of outdated versions [@1:42:43] - `cargo --timings` dark mode [@1:43:15] - Checksum-based freshness in Cargo nightly [@1:44:26] - Rust 1.84 [@1:44:40] - Cargo considers Rust version for dependency version selection [@1:49:03] - Migration to the new trait solver begins [@1:51:47] - Strict provenance APIs Pointers Are Complicated Pointers Are Complicated II Pointers Are Complicated III Rust has provenance Gankra’s write-up on raw pointer design Strict provenance APIs tracking issue [@1:57:53] - Stabilized APIs [@1:57:58] - `::isqrt` [@1:58:15] - `core::ptr::dangling` [@1:59:15] - Changelog deep-dive [@1:59:15] - Include `Cargo.lock` in published crates [@2:00:12] - `wasm32-wasi` target removed [@2:01:06] - `&raw *invalid_ptr` is fine Credits Intro Theme: Aerocity Audio Editing: synchis Hosting Infrastructure: Jon Gjengset Show Notes: Jon Gjengset Hosts: Jon Gjengset and Ben Striegel
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