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

View all episodes

View all episodes

Download on the App Store

Download on the App Store

Get it on Google Play

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

More shows like Rustacean Station

Odd Lots by Bloomberg

Odd Lots

1,999 Listeners

The Changelog: Software Development, Open Source by Changelog Media

The Changelog: Software Development, Open Source

287 Listeners

Security Now (Audio) by TWiT

Security Now (Audio)

2,008 Listeners

Software Engineering Daily by Software Engineering Daily

Software Engineering Daily

623 Listeners

Risky Business by Risky Business Media

Risky Business

375 Listeners

Talk Python To Me by Michael Kennedy

Talk Python To Me

583 Listeners

The Quanta Podcast by Quanta Magazine

The Quanta Podcast

546 Listeners

Syntax - Tasty Web Development Treats by Wes Bos & Scott Tolinski - Full Stack JavaScript Web Developers

Syntax - Tasty Web Development Treats

987 Listeners

Darknet Diaries by Jack Rhysider

Darknet Diaries

8,059 Listeners

Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas by Sean Carroll

Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas

4,182 Listeners

Hard Fork by The New York Times

Hard Fork

5,554 Listeners

Oxide and Friends by Oxide Computer Company

Oxide and Friends

65 Listeners

Past Present Future by David Runciman

Past Present Future

336 Listeners

Rust in Production by Matthias Endler

Rust in Production

25 Listeners

The Pragmatic Engineer by Gergely Orosz

The Pragmatic Engineer

75 Listeners