ESLint v10: Flat Config Completion and JSX Tracking
7 relevance
Score Breakdown
technical depth 7
novelty 6
actionability 8
community 8
strategic 6
personal 7
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ESLint's transition to flat config, important for JavaScript/TypeScript developer tooling.
Summary
ESLint v10 removes legacy eslintrc entirely, dropping APIs like defineParser and shouldUseFlatConfig, and shifts config resolution to per-file directories for monorepo clarity. Native JSX reference tracking eliminates no-unused-vars false positives, and RuleTester gains requireMessage/requireLocation assertions. Node.js support tightens to ^20.19.0 || ^22.13.0 || >=24, while community migration pains persist: eslint-plugin-react and eslint-config-next lack v10 peer dependency updates, and Rust-based alternatives Biome/Oxlint continue to gain adoption.