- Add helpful error messages for nullish configs and replace graphemer with Intl.Segmenter; extend ESLint globals with Intl and improve rule handling (allow while(true) in no‑constant‑condition)
- Fix crashes in fs.walk filter, EMFILE errors, config inspection for flat configs, and ignore handling; update package configs and build process
- Update documentation, drop support for Node < 18, and upgrade various dependencies and plugins
v9.1.0
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Added handling for underflow without loss of precision and introduced checkConditionalExpressions to avoid unmodified loop conditions.
Fixed ASI hazard handling and false positives in various linting rules (e.g., no unused labels, getters, and unused vars).
Export ConfigObject from eslint/config to enable external usage.