Features

• 301b90d feat: Add types (#18854) (Nicholas C. Zakas)
• bcf0df5 feat: limit namespace import identifier in id-length rule (#18849) (ChaedongIm)
• 45c18e1 feat: add requireFlag option to require-unicode-regexp rule (#18836) (Brett Zamir)
• 183b459 feat: add error message for duplicate flags in no-invalid-regexp (#18837) (Tanuj Kanti)
• c69b406 feat: report duplicate allowed flags in no-invalid-regexp (#18754) (Tanuj Kanti)

Documentation

• bee0e7a docs: update README (#18865) (Milos Djermanovic)
• 5d80b59 docs: specify that ruleId can be null in custom formatter docs (#18857) (Milos Djermanovic)
• 156b1c3 docs: Update README (GitHub Actions Bot)
• f6fdef9 docs: Update README (GitHub Actions Bot)
• a20c870 docs: Update README (GitHub Actions Bot)
• 90e699b docs: Update README (GitHub Actions Bot)

Chores

• 24c3ff7 chore: upgrade to @eslint/js@9.10.0 (#18866) (Francesco Trotta)
• 1ebdde1 chore: package.json update for @eslint/js release (Jenkins)
• e8fc5bd chore: update dependency @eslint/core to ^0.5.0 (#18848) (renovate[bot])
• 343f992 refactor: don't use node.value when removing unused directives (#18835) (Milos Djermanovic)
• 3db18b0 refactor: Extract FileContext into class (#18831) (Nicholas C. Zakas)
• 931d650 refactor: Use @eslint/plugin-kit (#18822) (Nicholas C. Zakas)
• ed5cf0c chore: update dependency @eslint/json to ^0.4.0 (#18829) (Milos Djermanovic)
• d1f0831 chore: added missing ids (#18817) (Strek)
• ec92813 refactor: Config class (#18763) (Nicholas C. Zakas)