CHANGELOG.md

Changelog

4.0.0

See MIGRATING.md for details on how to upgrade from 3.x to 4.0.0.

Requires Node 20 or later

Version 4.0.0 requires Node ^20.19.0 || ^22.13.0 || >=24.

Breaking Changes

• ESLint 9 required
• Config format changed from legacy eslintrc object to flat config array

Changes

Added new dependencies:

• @babel/preset-react ^7.28.5
• globals ^16.0.0

Added peerDependencies:

• eslint ^9.0.0

Updated dev dependencies:

• eslint 9.20.0

Updated configuration:

• Converted from legacy eslintrc object to flat config array format
• Now exports an array with 3 config objects:
  • js.configs.recommended + prettierConfig
  • Main config for \*_/_.{js,jsx} files (React, JSX-A11y, React Hooks, Import, Prettier)
  • Test config for \*_/_.test.{js,jsx} etc. (Jest, Jest-DOM, Testing Library)

3.7.0

Requires Node 20 or later

Version 3.7.0 requires Node ^20.19.0 || ^22.13.0 || >=24.

Major updates of dependencies

• eslint-config-prettier
• eslint-plugin-jest
• eslint-plugin-react-hooks
• eslint-plugin-testing-library
• jest

Minor updates of dependencies

• @babel/core
• prettier

Removed @stylistic/eslint-plugin-js

Consequence of @stylistic/eslint-plugin-js removal:

• No error when comment starts immediately after // without space between, see spaced-comment
• No error when directives are stacked without blank lines between, see padding-line-between-statements

3.0.0

Requires Node 16

Version 3.0.0 requires Node >=16.x.

Removed use of Airbnb's .eslintr

The configuration in eslint-config-airbnb was replaced by eslint:recommended.

Major updates of dependencies

• eslint
• eslint-plugin-jest
• eslint-plugin-jest-dom
• eslint-plugin-prettier
• eslint-plugin-testing-library
• eslint-config-prettier

See below for details:

• https://eslint.org/docs/8.0.0/user-guide/migrating-to-8.0.0
• https://github.com/jest-community/eslint-plugin-jest/releases/tag/v25.0.0
• https://github.com/jest-community/eslint-plugin-jest/releases/tag/v26.0.0
• https://github.com/testing-library/eslint-plugin-jest-dom/releases/tag/v4.0.0
• https://github.com/prettier/eslint-plugin-prettier/releases/tag/v4.0.0
• https://github.com/testing-library/eslint-plugin-testing-library/releases/tag/v5.0.0

2.0.0

eslint-config-prettier upgraded to v8 as well as plugin:testing-library to v4.

See below for details:

• https://github.com/prettier/eslint-config-prettier/blob/main/CHANGELOG.md

• https://github.com/testing-library/eslint-plugin-testing-library/blob/main/docs/migrating-to-v4-guide.md