What's New in Rust 1.85 through 1.87

Jon and Ben discuss the highlights of the 1.85 through 1.88 releases of Rust. 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 [@01:11] - Rust 1.85 [@02:05] - async closures RFC 3668 Stabilization report [@07:45] - Hiding trait implementations from diagnostics [@09:43] - FromIterator and Extend for tuples [@12:10] - Updates to std::env::home_dir() Deprecation discussion Deprecation PR Originally abandoned fix Undeprecation [@15:19] - Stabilized APIs [@15:30] - number::midpoint [@16:18] - Waker::noop [@17:49] - ptr::fn_addr_eq [@20:10] - Changelog deep-dive [@20:10] - De-duplicate and improve definition of c_char [@22:56] - More constification [@23:51] - Rust 1.85.1 [@24:46] - Rust 1.86 [@25:24] - Trait upcasting [@30:49] - HashMaps and slices now support indexing multiple elements mutably [@33:50] - Allow safe functions to be marked with the #[target_feature] attribute [@36:21] - Debug assertions that pointers are non-null when required for soundness [@39:48] - Make missing_abi lint warn by default [@40:55] - Target deprecation warning for 1.87.0 [@42:25] - Stabilized APIs [@42:25] - {float}::next_up [@44:55] - Vec::pop_if [@46:41] - Changelog deep-dive [@46:41] - Changing -O to opt-level=3 [@47:47] - Optimized rustc binaries for aarch64 [@49:04] - Deprecate cargo --token [@49:43] - No more “did you mean” in Cargo [@50:14] - Sans-serif in rustdoc [@50:45] - Rust 1.87 [@51:27] - Anonymous pipes [@53:06] - Safe architecture intrinsics Update the standard library to Rust 2024 [@55:00] - asm! jumps to Rust code [@57:06] - Precise capturing in impl Trait in trait definitions The Captures “trick” Talk on impl Trait [@58:45] - Stabilized APIs [@58:45] - Vec::extract_if [@1:00:13] - <[T]>::split_off [@1:01:47] - OsStr::display [@1:03:40] - <uN>::cast_signed [@1:04:41] - <uN>::is_multiple_of [@1:05:31] - <uN>::unbounded_shl [@1:06:20] - TryFrom<Vec<u8>> for String [@1:06:46] - Box<MaybeUninit<T>>::write [@1:08:23] - String::extend_from_within [@1:07:46] - Changelog deep-dive [@1:07:46] - Actually un-deprecate home_dir [@1:10:41] - Cargo SBOM support (RFC 3553) [@1:11:48] - More Cargo ANSI sequences 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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What's New in Rust 1.85 through 1.87 is an episode from Rustacean Station by Jon Gjengset.

This episode is 01:14:02 long.

This episode was published on Jan 22, 2026.

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