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Fearless SIMD v1.0 released
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Fearless SIMD v1.0 released

The gist

Fearless SIMD v1.0 shipped, letting Rust SIMD code run without ad-hoc unsafe blocks.
Over 1,000 Rust projects rely on it, so the 1.0 freeze locks their code.

How it unfolded

  1. Sep 22, 2026Fearless SIMD v1.0 is released, announced by Shnatsel on the Linebender blog.
  2. Sep 23, 2026Coverage reports the release removes the need for ad-hoc unsafe code in SIMD operations via a kernel macro and a safe transmute module.
  3. Sep 23, 2026Coverage states more than 1,000 Rust projects already rely on Fearless SIMD, and that reaching 1.0 freezes the design.

Sources

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