ESLint v10.4.0 released

Highlights

New includeIgnoreFile() helper

This release introduces the includeIgnoreFile() helper for configuration files that allows for including patterns from .gitignore files or any other files with gitignore-style patterns.

Previously available in the external package @eslint/compat, the new includeIgnoreFile helper function is exported from the eslint/config entrypoint and provides an extended API that allows multiple files to be included and patterns to be interpreted relative to the location of those files, which is a common use case for nested .gitignore files.

// eslint.config.js

import { defineConfig, includeIgnoreFile } from "eslint/config";
import { fileURLToPath } from "node:url";

const rootGitignorePath = fileURLToPath(
    new URL(".gitignore", import.meta.url)
);
const nestedGitignorePath = fileURLToPath(
    new URL("some/other/folder/.gitignore", import.meta.url),
);

export default defineConfig([
    includeIgnoreFile([rootGitignorePath, nestedGitignorePath], {
        // option to interpret patterns relative to the locations of the specified files
        gitignoreResolution: true,
    }),
    {
        // your overrides
    },
]);
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Please see the Include .gitignore Files section for more details.

Features

• 1a45ec5 feat: check sequence expressions in for-direction (#20701) (kuldeep kumar)
• 450040b feat: add includeIgnoreFile() to eslint/config (#20735) (Kirk Waiblinger)

Bug Fixes

• 544c0c3 fix: escape code path DOT labels in debug output (#20866) (Pixel998)
• 6799431 fix: update dependency @eslint/config-helpers to ^0.6.0 (#20850) (renovate[bot])
• f078fef fix: handle non-array deprecated rule replacements (#20825) (xbinaryx)

Documentation

• 7e52a71 docs: add mention of @eslint-react/eslint-plugin (#20869) (Pavel)
• db3468b docs: tweak wording around ambiguous CJS-vs-ESM config (#20865) (Kirk Waiblinger)
• 9084664 docs: Update README (GitHub Actions Bot)
• 9cc7387 docs: Update README (GitHub Actions Bot)
• 3d7b548 docs: Update README (GitHub Actions Bot)
• 191ec3c docs: Update README (GitHub Actions Bot)

Chores

• 6616856 chore: upgrade knip to v6 (#20875) (Pixel998)
• d13b084 ci: ensure auto-created PRs run CI (#20860) (lumir)
• e71c7af ci: bump pnpm/action-setup from 6.0.5 to 6.0.7 (#20862) (dependabot[bot])
• d84393d test: add unit tests for SuppressionsService.applySuppressions() (#20863) (kuldeep kumar)
• 24db8cb test: add tests for SuppressionsService.save() (#20802) (kuldeep kumar)
• 2ef0549 chore: update ecosystem plugins (#20857) (github-actions[bot])
• a429791 ci: remove eslint-webpack-plugin types integration test (#20668) (Milos Djermanovic)
• 9e37386 chore: replace recast with range approach in code-sample-minimizer (#20682) (Copilot)
• 0dd1f9f test: disable warning for vm.constants.USE_MAIN_CONTEXT_DEFAULT_LOADER (#20845) (Francesco Trotta)
• 9da3c7b refactor: remove deprecated meta.language and migrate meta.dialects (#20716) (Pixel998)
• 2099ed1 refactor: add meta.defaultOptions to more rules, enable linting (#20800) (xbinaryx)
• f1dfbc9 chore: update ecosystem plugins (#20836) (github-actions[bot])
• c759413 ci: bump pnpm/action-setup from 6.0.3 to 6.0.5 (#20843) (dependabot[bot])
• 5b817d6 test: add unit tests for lib/shared/ast-utils (#20838) (kuldeep kumar)
• 1c13ae3 test: add unit tests for lib/shared/severity (#20835) (kuldeep kumar)