Rust is now a Tier-1 language at Microsoft, confirms ruff author Charlie Marsh

charliermarsh · x · 2026-09-10

Charlie Marsh (author of ruff/uv) highlighted that Rust has officially become a Tier-1 language at Microsoft, meaning Rust now receives first-class internal support on par with legacy mainstay languages. A notable milestone for Rust's adoption across the industry.

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