40
submitted 3 weeks ago* (last edited 3 weeks ago) by tonytins@pawb.social to c/programming@programming.dev

Rust 1.89 is now released, expanding x86 and x86/x86_64 platform support with new processor instructions and features, including additional AVX-512 intrinsics. The target_feature attribute adds support for SHA512, SM3, SM4, KL, and WIDEKL, giving developers better access to modern CPU capabilities directly from Rust code.

Full changelog: https://blog.rust-lang.org/2025/08/07/Rust-1.89.0/

top 4 comments
sorted by: hot top controversial new old
[-] undefined@lemmy.hogru.ch 6 points 3 weeks ago

[T]he x86_64-apple-darwin target moves to Tier-2 due to Apple and GitHub reducing x86_64 macOS support

What does that mean? How can GitHub reduce x86_64 support in Rust?

[-] tonytins@pawb.social 12 points 3 weeks ago* (last edited 3 weeks ago)

Seems to be justification according to their changelog. (Wish the site would just link to that) I'm assuming they were going to do it, anyway, now that Apple has pretty much phased out x86 support, and Github's discontinuation was just kinda put the final nail in the coffin.

[-] Ephera@lemmy.ml 7 points 3 weeks ago

Yeah, feels a little bit early when I know some devs in my company that still have x86 Macbooks, but I guess, it's not like bugs will show up immediately, so we'll see how that goes...

[-] Giooschi@lemmy.world 12 points 3 weeks ago

https://doc.rust-lang.org/nightly/rustc/platform-support.html

Tier 1 targets can be thought of as "guaranteed to work". The Rust project builds official binary releases for each tier 1 target, and automated testing ensures that each tier 1 target builds and passes tests after each change.

https://doc.rust-lang.org/nightly/rustc/target-tier-policy.html#tier-1-target-policy

The target must build and pass tests reliably in CI, for all components that Rust's CI considers mandatory.

Github is removing support for CI on that target, and since that's a requirement for Tier 1 support the target has to be downgraded.

this post was submitted on 09 Aug 2025
40 points (100.0% liked)

Programming

22415 readers
86 users here now

Welcome to the main community in programming.dev! Feel free to post anything relating to programming here!

Cross posting is strongly encouraged in the instance. If you feel your post or another person's post makes sense in another community cross post into it.

Hope you enjoy the instance!

Rules

Rules

  • Follow the programming.dev instance rules
  • Keep content related to programming in some way
  • If you're posting long videos try to add in some form of tldr for those who don't want to watch videos

Wormhole

Follow the wormhole through a path of communities !webdev@programming.dev



founded 2 years ago
MODERATORS