This site is being rebuilt and some pages are out of date. For current details, write to [email protected]. This notice goes away when the rebuild is done.

No analytics unless you allow it, no tracking. This site keeps in your browser the language you pick, the theme, its colour, which site you chose, the currency on the pricing page and that you closed this notice; signing in adds session cookies. The legal page has the details.

Sign in

Radar · Rust · Archive · Week 34 · Aug 18 – 24, 2025

Promote aarch64‑pc‑windows‑msvc to Tier 1

Worth knowingtooling

What changed
The aarch64‑pc‑windows‑msvc target is now a Tier 1 target, meaning it receives the same level of support and tooling as other Tier 1 targets.
Production impact
The source does not say.
Try it
Run rustup target list --installed on a Windows machine to confirm the target is available.
Source
github.com/rust-lang/rfcs/pull/3817

Understand it, then run it

The aarch64-pc-windows-msvc target is now a Tier 1 target. Tier 1 means it gets the same level of support and tooling as other major targets like x86_64-pc-windows-msvc. Before this change, it was a Tier 2 target, so some tooling and compiler features were not fully available. Now you can build and run Rust code on ARM64 Windows with the same confidence as on x86‑64.

Written by gpt-oss-20b from the linked source · claims checked against the sources · archive, not individually reviewed