Github Migrates Copilot Runtime to Rust with AI-Assisted Rewrite

GitHub migrated more than 800,000 lines of Copilot runtime code from TypeScript and Node.js to Rust in about 14.5 weeks using AI-assisted development. The incremental migration used N-API interoperability, automated testing, human review, and 128 pull requests while continuing to ship releases. By Leela Kumili

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