January 22, 2026

What's New in Rust 1.85 through 1.87

1 hour 14 minutes

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: [email protected]

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] - ::cast_signed

[@1:04:41] - ::is_multiple_of

[@1:05:31] - ::unbounded_shl

[@1:06:20] - TryFrom> for String

[@1:06:46] - Box>::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

...more

View all episodes

By Rustacean Station

4.9

6464 ratings

January 22, 2026

What's New in Rust 1.85 through 1.87

1 hour 14 minutes

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: [email protected]

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] - ::cast_signed

[@1:04:41] - ::is_multiple_of

[@1:05:31] - ::unbounded_shl

[@1:06:20] - TryFrom> for String

[@1:06:46] - Box>::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

...more

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What's New in Rust 1.85 through 1.87

What's New in Rust 1.85 through 1.87

More shows like Rustacean Station

Odd Lots

The Changelog: Software Development, Open Source

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