What's New in Rust 1.88 through 1.90

Jon and Ben discuss the highlights of the 1.88 through 1.90 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 [@00:26] - Rust 1.88 [@00:26] - Let chains The if let temporary scope [@09:09] - Naked functions [@11:55] - Boolean configuration [@14:15] - Cargo automatic cache cleaning [@17:52] - Stabilized APIs [@17:52] - hint::select_unpredictable [@21:16] - <[T]>::as_chunks [@22:25] - Default for *const T [@23:13] - HashMap::extract_if [@23:43] - More metadata from Span [@24:48] - Changelog deep-dive [@24:48] - De-stabilize #[bench] [@26:55] - --no-capture [@28:31] - Rust 1.89 [@28:40] - Explicitly inferred arguments to const generics [@30:14] - Mismatched lifetime syntaxes lint [@35:29] - More x86 target features [@36:33] - Cross-compiled doctests [@38:31] - i128 and u128 in extern "C" functions [@40:38] - Demoting x86_64-apple-darwin to Tier 2 Platform support policy [@42:18] - Standards Compliant C ABI on wasm32-unknown-unknown More about the ABI changes [@46:05] - Stabilized APIs [@46:05] - File::lock [@48:34] - Changelog deep-dive [@48:40] - aarch64 frame pointers Why do frame pointers matter? [@49:59] - Allow storing format_args! in variable Behind the scenes of format_args! [@51:38] - rustdoc sidebar on mobile [@52:14] - Rust 1.90 [@52:14] - LLD is now the default linker on x86_64-unknown-linux-gnu PR with lots of linked resources rustc performance diff with lld [@1:01:26] - Cargo adds native support for workspace publishing [@1:03:03] - Stabilized APIs [@1:03:26] - u{n}::saturating_sub_signed [@1:04:20] - Changelog deep-dive [@1:04:20] - home_dir fall back if HOME is set but empty Credits Intro Theme: Aerocity Audio Editing: synchis Hosting Infrastructure: Jon Gjengset Show Notes: Jon Gjengset Hosts: Jon Gjengset and Ben Striegel

You can listen to What's New in Rust 1.88 through 1.90 online on Radio and Podcast. Open the player on this page to stream the available audio.

What's New in Rust 1.88 through 1.90 is an episode from Rustacean Station by Jon Gjengset.

This episode is 01:07:12 long.

This episode was published on Jan 22, 2026.

Yes. Use the heart button on the episode page to add it to your favorite episodes list.

Yes. This page shows related episodes from Rustacean Station when more episodes are available from the podcast feed.