eslint 9.0.0-alpha.1

on Node.js NPM

Breaking Changes

• 701f1af feat!: no-inner-declaration new default behaviour and option (#17885) (Tanuj Kanti)
• bde5105 fix!: handle --output-file for empty output when saving to disk (#17957) (Nitin Kumar)
• 07107a5 fix!: upgrade eslint-scope@8.0.0 (#17942) (Milos Djermanovic)
• 3ee0f6c fix!: no-unused-vars varsIgnorePattern behavior with catch arguments (#17932) (Tanuj Kanti)
• 51f8bc8 fix!: configuration comments with just severity should retain options (#17945) (Milos Djermanovic)
• d191bdd feat!: Remove CodePath#currentSegments (#17936) (Milos Djermanovic)

Features

• a630edd feat: maintain latest ecma version in ESLint (#17958) (Milos Djermanovic)
• b4e0503 feat: add no-useless-assignment rule (#17625) (Yosuke Ota)
• 287c4b7 feat: no-misleading-character-class granular errors (#17515) (Josh Goldberg ✨)

Bug Fixes

• 6d11f3d fix: Ensure config keys are printed for config errors (#17980) (Nicholas C. Zakas)
• 806f708 fix: no-misleading-character-class edge cases with granular errors (#17970) (Milos Djermanovic)

Documentation

• 96307da docs: migration guide entry for no-inner-declarations (#17977) (Tanuj Kanti)
• 40be60e docs: Update README (GitHub Actions Bot)
• d31c180 docs: fix number of code-path events on custom rules page (#17969) (Richard Hunter)
• 1529ab2 docs: reorder entries in v9 migration guide (#17967) (Milos Djermanovic)
• 9507525 docs: Explain how to combine configs (#17947) (Nicholas C. Zakas)
• 7c78576 docs: Add more removed context methods to migrate to v9 guide (#17951) (Milos Djermanovic)
• 3a877d6 docs: Update removed CLI flags migration (#17939) (Nicholas C. Zakas)
• 4a9cd1e docs: Update Linter API for v9 (#17937) (Milos Djermanovic)
• 2a8eea8 docs: update docs for v9.0.0-alpha.0 (#17929) (Milos Djermanovic)

Build Related

• c2bf27d build: update docs files when publishing prereleases (#17940) (Milos Djermanovic)

Chores

• c5e50ee chore: package.json update for @eslint/js release (Jenkins)
• 1bf2520 chore: Split Docs CI from core CI (#17897) (Nicholas C. Zakas)
• 320787e chore: delete relative-module-resolver.js (#17981) (Francesco Trotta)
• 4926f33 refactor: use Object.hasOwn() (#17948) (Milos Djermanovic)
• df200e1 refactor: use Array.prototype.at() to get last elements (#17949) (Milos Djermanovic)
• 750b8df chore: update dependency glob to v10 (#17917) (renovate[bot])
• 74794f5 chore: removed unused eslintrc modules (#17938) (Milos Djermanovic)
• 10ed29c chore: remove unused dependency rimraf (#17934) (Francesco Trotta)
• 903ee60 ci: use --force flag when installing eslint (#17921) (Milos Djermanovic)