Rust 1.93.0 release notes: SIMD, varargs, and the stuff that breaks builds

📰 Dev.to · Matheus

Learn about the new features and breaking changes in Rust 1.93.0, including SIMD and varargs, and how to handle potential build issues

intermediate Published 21 Feb 2026
Action Steps
  1. Update to Rust 1.93.0 using the official installer
  2. Review the release notes for breaking changes and updates
  3. Test your project for compatibility issues with the new version
  4. Apply fixes for any breaking changes, such as updating Emscripten flags
  5. Configure your project to use new features like SIMD and varargs
Who Needs to Know This

Developers and DevOps teams working with Rust will benefit from understanding the updates and potential breaking changes in this release, to ensure smooth project maintenance and updates

Key Insight

💡 Rust 1.93.0 introduces significant updates, including SIMD and varargs, but may also break existing builds due to changes like Emscripten flags

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🚀 Rust 1.93.0 is out! 🤔 Learn about the new features and breaking changes to keep your projects on track #Rust #Programming

Key Takeaways

Learn about the new features and breaking changes in Rust 1.93.0, including SIMD and varargs, and how to handle potential build issues

Full Article

I’ve watched “minor” Rust upgrades stall a release train for one dumb reason. Emscripten flags. Rust...
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