- Added new rules and formatters such as “no useless return”, Codeframe formatter, support for enhanced parsers, and fixer options for arrow bodies, brace style, and member expressions.
- Enhanced existing rules with options and fixes: CallExpression option for indent, ignoreRegExpLiterals for max‑len, nameMatches for function name matching, plus numerous spacing and false‑positive corrections.
- Updated documentation, fixed typos, added examples, and deprecated the prefer‑reflect rule while ensuring links retain .md extensions.
v3.9.0
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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.