# Changelog

All notable changes to this project will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [Unreleased]

## [15.0.0]

### Changed

- **BREAKING:** Bump peer dependency on `@metamask/eslint-config` from `^14.0.0` to `^15.0.0` ([#431](https://github.com/MetaMask/eslint-config/pull/431))
- **BREAKING:** Convert various rules from `warn` to `error` ([#424](https://github.com/MetaMask/eslint-config/pull/424))
  - The rules impacted are:
    - `jest/expect-expect`
    - `jest/no-alias-methods`
    - `jest/no-commented-out-tests`
    - `jest/no-disabled-tests`
- Widen `typescript` peer dependency to allow all 5.x versions ([#422](https://github.com/MetaMask/eslint-config/pull/422))

## [14.1.0]

### Changed

- Replace `@typescript-eslint/unbound-method` rule with `jest/unbound-method` in Jest tests ([#391](https://github.com/MetaMask/eslint-config/pull/391))
  - `jest/unbound-method` is looser than `@typescript-eslint/unbound-method`, so this should be a non-breaking change unless `@typescript-eslint/unbound-method` is disabled.
- Remove `jest/no-conditional-in-test` rule ([#383](https://github.com/MetaMask/eslint-config/pull/383))

## [14.0.0]

### Changed

- **BREAKING:** Bump minimum Node.js version from 16 to 18.18 ([#371](https://github.com/MetaMask/eslint-config/pull/371))
- **BREAKING:** Bump peer dependency on ESLint from `^8.57.0` to `^9.11.0` ([#370](https://github.com/MetaMask/eslint-config/pull/370))
  - ESLint 9 requires flat configs, so this change also rewrites the configs to
    use flat configs. The legacy config format is no longer supported.
- **BREAKING:** Bump peer dependency on `@metamask/eslint-config` from `^13.0.0` to `^14.0.0` ([#377](https://github.com/MetaMask/eslint-config/pull/377))
- **BREAKING:** Bump peer dependency on `eslint-plugin-jest` from `^27.9.0` to `^28.8.3` ([#370](https://github.com/MetaMask/eslint-config/pull/370))
- **BREAKING:** Change package to be pure ESM ([#370](https://github.com/MetaMask/eslint-config/pull/370))
  - ESLint 9 supports ESM out-of-the-box, so this change updates the package to
    be pure ESM. This means that the package can no longer be used with CommonJS
    `require` syntax.

## [13.0.0]

### Changed

- **BREAKING**: Replace `eslint-plugin-import` with `eslint-plugin-import-x` ([#366](https://github.com/MetaMask/eslint-config/pull/366))
- **BREAKING**: Bump all ESLint dependencies ([#351](https://github.com/MetaMask/eslint-config/pull/351))
  - Bumps all ESLint dependencies to the latest version compatible with Node.js 16.
- **BREAKING**: Bump minimum Node.js version from 14 to 16 ([#332](https://github.com/MetaMask/eslint-config/pull/332), [#339](https://github.com/MetaMask/eslint-config/pull/339))

## [12.1.0]

### Changed

- Add support for typescript 5.0.x, 5.1.x ([#288](https://github.com/MetaMask/eslint-config/pull/288))

## [12.0.0]

### Changed

- **BREAKING:** Update peer dependency `@metamask/eslint-config` to v12

## [11.1.0]

### Changed

- Exclude test files from package ([#266](https://github.com/MetaMask/eslint-config/pull/266))

## [11.0.0]

### Changed

- **BREAKING:** Bump all ESLint dependencies to the latest version ([#252](https://github.com/MetaMask/eslint-config/pull/252))
  - This includes peer dependencies.

## [10.0.0]

### Changed

- **BREAKING:** Update ESLint from v7 to v8 ([#233](https://github.com/MetaMask/eslint-config/pull/233))
  - This is breaking because `eslint` is a `peerDependency`.
  - Four new rules have been added:
    - [`no-loss-of-precision`](https://eslint.org/docs/latest/rules/no-loss-of-precision)
    - [`no-nonoctal-decimal-escape`](https://eslint.org/docs/latest/rules/no-nonoctal-decimal-escape)
    - [`no-unsafe-optional-chaining`](https://eslint.org/docs/latest/rules/no-unsafe-optional-chaining)
    - [`no-useless-backreference`](https://eslint.org/docs/latest/rules/no-useless-backreference)
- **BREAKING:** Bump eslint-plugin-jest to ^26.x ([#228](https://github.com/MetaMask/eslint-config/pull/228))
  - This is breaking because `eslint-plugin-jest` is a `peerDependency`
  - The rule [`jest/prefer-to-be`](https://github.com/jest-community/eslint-plugin-jest/blob/main/docs/rules/prefer-to-be.md) has replaced the old rules `jest/prefer-to-be-null` and `jest/prefer-to-be-undefined`. This is breaking because it is more broadly applicable than the two it replaces, and may force us to use `toBe` for all primatives (over `toBeEqual` or equivalent).
  - Two rules were renamed (`jest/valid-describe` => `jest/valid-describe-callback`, and `jest/lowercase-name` => `jest/prefer-lowercase-title`)
- **BREAKING:** Update minimum Node.js version to v14 ([#225](https://github.com/MetaMask/eslint-config/pull/225))

## [9.0.0]

### Added

- **BREAKING:** Add JSDoc ESLint rules ([#203](https://github.com/MetaMask/eslint-config/pull/203))

## [8.0.0]

### Changed

- **BREAKING:** The peer dependency `@metamask/eslint-config` has been updated from v7 to v8.

## [7.0.0]

### Changed

- Update install instructions in readme ([#185](https://github.com/MetaMask/eslint-config/pull/185))

### Fixed

- Add `@metamask/eslint-config` as a peer dependency ([#186](https://github.com/MetaMask/eslint-config/pull/186))
  - This package is designed to be used in conjunction with the MetaMask base ESLint config, so this should always have been a peer dependency.

## [6.0.0] - 2021-04-08

### Changed

- **BREAKING:** Set minimum Node.js version to `^12.0.0` ([#144](https://github.com/MetaMask/eslint-config/pull/144))
- Publish this config as its own package ([#141](https://github.com/MetaMask/eslint-config/pull/141))
  - The contents of this package were previously published as part of [`@metamask/eslint-config`](https://npmjs.com/package/@metamask/eslint-config).
    For changes prior to version `6.0.0`, please refer to the changelog of that package.
  - To continue extending this config, install this package and update your `.eslintrc.js` `extends` array to include `@metamask/eslint-config-jest` instead of `@metamask/eslint-config/jest`.
- Update `eslint` and other ESLint peer dependencies ([#151](https://github.com/MetaMask/eslint-config/pull/151))

[Unreleased]: https://github.com/MetaMask/eslint-config/compare/@metamask/eslint-config-jest@15.0.0...HEAD
[15.0.0]: https://github.com/MetaMask/eslint-config/compare/@metamask/eslint-config-jest@14.1.0...@metamask/eslint-config-jest@15.0.0
[14.1.0]: https://github.com/MetaMask/eslint-config/compare/@metamask/eslint-config-jest@14.0.0...@metamask/eslint-config-jest@14.1.0
[14.0.0]: https://github.com/MetaMask/eslint-config/compare/@metamask/eslint-config-jest@13.0.0...@metamask/eslint-config-jest@14.0.0
[13.0.0]: https://github.com/MetaMask/eslint-config/compare/@metamask/eslint-config-jest@12.1.0...@metamask/eslint-config-jest@13.0.0
[12.1.0]: https://github.com/MetaMask/eslint-config/compare/@metamask/eslint-config-jest@12.0.0...@metamask/eslint-config-jest@12.1.0
[12.0.0]: https://github.com/MetaMask/eslint-config/compare/@metamask/eslint-config-jest@11.1.0...@metamask/eslint-config-jest@12.0.0
[11.1.0]: https://github.com/MetaMask/eslint-config/compare/@metamask/eslint-config-jest@11.0.0...@metamask/eslint-config-jest@11.1.0
[11.0.0]: https://github.com/MetaMask/eslint-config/compare/@metamask/eslint-config-jest@10.0.0...@metamask/eslint-config-jest@11.0.0
[10.0.0]: https://github.com/MetaMask/eslint-config/compare/@metamask/eslint-config-jest@9.0.0...@metamask/eslint-config-jest@10.0.0
[9.0.0]: https://github.com/MetaMask/eslint-config/compare/@metamask/eslint-config-jest@8.0.0...@metamask/eslint-config-jest@9.0.0
[8.0.0]: https://github.com/MetaMask/eslint-config/compare/@metamask/eslint-config-jest@7.0.0...@metamask/eslint-config-jest@8.0.0
[7.0.0]: https://github.com/MetaMask/eslint-config/compare/@metamask/eslint-config-jest@6.0.0...@metamask/eslint-config-jest@7.0.0
[6.0.0]: https://github.com/MetaMask/eslint-config/releases/tag/@metamask/eslint-config-jest@6.0.0