January 22, 2026

What's New in Rust 1.88 through 1.90

Listen Later

1 hour 7 minutes

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: [email protected]

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

...more

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Rustacean Station

By Rustacean Station

4.9

6464 ratings

January 22, 2026

What's New in Rust 1.88 through 1.90

Listen Later

1 hour 7 minutes

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: [email protected]

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

...more

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