Light scanner now uses specified files as hints instead of scanning entire project root, reducing overhead; type inference improved from ~75% to ~85% detection on floating promises.
June 9, 2026
Summary
Faster linting on partial codebases and nested directories without sacrificing correctness. Type inference improvements reduce false negatives on async rule violations, cutting manual promise audits.
Why it matters
Faster linting on partial codebases and nested directories without sacrificing correctness. Type inference improvements reduce false negatives on async rule violations, cutting manual promise audits.
Implementation verdict
Drop-in upgrade for existing Biome 2.0 users. Project rules remain opt-in; no configuration changes needed unless you want the scanner speedup. Worth upgrading immediately if you run Biome on subdirectories or specific file patterns.
Sources
Dev Signal
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