v3.1.0: Adjust peer dependencies; convert Babel configuration to ESM

🌎 External changes

• Add optional peer dependencies @vitest/coverage-istanbul, core-js, and vitest.
• Mark as optional formerly required peer dependencies @babel/core, @babel/plugin-syntax-import-attributes, @babel/preset-env, and @babel/preset-typescript.
• Drop orphaned peer dependency @babel/eslint-parser.

🏠 Internal changes

• Convert Babel configuration from CommonJS to ESM and delete the internal proxy file in favor of babel.extends in package.json.
• Upgrade dependencies.

v3.0.0: Add Vitest configuration; drop Jest; update lint rules, dependencies

⚠️ BREAKING CHANGES

• Bump minimum versions of peer dependencies:
  • @typescript-eslint/eslint-plugin: 7.2 → 7.16
  • eslint-import-resolver-typescript: 3.6.1 → 3.6.2
  • eslint-plugin-i → eslint-plugin-import-x: 2.29.1 → 4.2.1
  • eslint-plugin-react: None → 7.35 (optional)
  • eslint-plugin-react-hooks: None → any (optional)
  • typescript: 5.2 → 5.5
• configuration:
  • babel: Remove Jest hacks (stripping file extensions from imports and transpiling ESM → CommonJS).
  • eslint:
    • Drop resolver eslint-import-resolver-babel-module.
    • Migrate import/* rules to import-x/*.
  • javascript: Remove in favor of typescript superset.
• types:
  • Remove support for jest.MockedFunction from utility type ReplaceReturnType.

🌎 External changes

• collections
  • SortedSet: Implement new ES6 methods difference(), intersection(), isDisjointFrom(), isSubsetOf(), isSupersetOf(), symmetricDifference(), and union().
• configuration:
  • Add vitest export with Vitest configuration.
  • eslint:
    • Enable @typescript-eslint rules:
      • …/no-empty-object-type,
      • …/no-unnecessary-parameter-property-assignment,
      • …/no-unnecessary-type-parameters,
      • …/no-unsafe-function-type,
      • …/no-wrapper-object-types, and
      • …/use-unknown-in-catch-callback-variable.
    • Remove no-new rule exemption for tests.
  • eslint-react:
    • Enable rules react/jsx-closing-tag-location (with option line-aligned) and react/jsx-props-no-spread-multi.
    • Remove react/forbid-foreign-prop-types rule exemption for mocks and tests.
  • typescript: Change option include to '${configDir}/src' (from '/src'), eliminating the need to locally override the path in every downstream project.
• utils:
  • Deprecate ExternallyControlledPromise in favor of ES2024's new Promise.withResolvers().

🏠 Internal changes

• Abandon Jest in favor of Vitest.
• Add to devDependencies packages that were previously only declared as peerDependencies.
• Upgrade dependencies.

v2.3.0: Improve `utils/clone()`; add lint rules; relax TS peer dependency

⚠️ POTENTIALLY DISRUPTIVE CHANGES

• Enable lint rules @typescript-eslint/prefer-find, @typescript-eslint/prefer-string-starts-ends-with, react/checked-requires-onchange-or-readonly.

🌎 External changes

• Improve utils/clone() by:
  • allowing property descriptors to change the types of existing properties, and
  • enhancing the return type to include new properties and reflect changes to existing properties.
• Relax typescript peer dependency semver to >= 5.2.

🏠 Internal changes

• Upgrade dependencies.

v2.2.0: Enhance `SortedSet` with support for number and string elements

⚠️ POTENTIALLY DISRUPTIVE CHANGES

• Upgrade @typescript-eslint/eslint-plugin from v6.18.0 to v6.19.1, which enables new lint rules in configuration strict-type-checked:
  • @typescript-eslint/no-array-delete
  • @typescript-eslint/prefer-promise-reject-errors

🌎 External changes

• Enhance SortedSet to natively support number and string elements without having to wrap them in Comparable objects.

🏠 Internal changes

• Improve unit tests for utils/ExternallyControlledPromise.

🧹 Chores

• Upgrade dependencies.

v2.1.0: Adjust lint rules, Babel configuration; upgrade dependencies

⚠️ POTENTIALLY DISRUPTIVE CHANGES

• Turn on lint rules @typescript-eslint/no-unsafe-unary-minus and @typescript-eslint/switch-exhaustiveness-check.
• Enable compiler option noUncheckedIndexedAccess in TypeScript and JavaScript configurations.

🌎 External changes

• Drop Babel plugin replace-import-extension in non-Jest environments now that @babel/preset-typescript's rewriteImportExtensions option handles .tsx extensions.

🧹 Chores

• Upgrade dependencies.

v2.0.0: Upgrade to TypeScript 5.2, `typescript-eslint` v6; improve types

⚠️ BREAKING CHANGES

• Upgrade to TypeScript 5.2, make it an optional peer dependency, and adjust configuration:
  • allowJs: off → on
  • checkJs: off → on
  • emitDeclarationOnly: off → on
  • module: "ESNext" → "NodeNext"
  • moduleResolution: "NodeNext" → 🗑️
  • strictNullChecks: off → on
• Upgrade peer dependency typescript-eslint to v6 and base the rule set on new presets strict-type-checked and stylistic-type-checked, with the following net changes:
  • Added: …/adjacent-overload-signatures, …/await-thenable, …/ban-ts-comment, …/ban-types, …/no-array-constructor, …/no-confusing-void-expression, …/no-extra-non-null-assertion, …/no-floating-promises, …/no-for-in-array, …/no-implied-eval, …/no-misused-new, …/no-misused-promises, …/no-namespace, …/no-non-null-asserted-optional-chain, …/no-object-constructor, …/no-redundant-type-constituents, …/no-this-alias, …/no-unnecessary-type-assertion, …/no-unnecessary-type-constraint, …/no-unsafe-argument, …/no-unsafe-assignment, …/no-unsafe-call, …/no-unsafe-member-access, …/no-unsafe-return, …/no-useless-empty-export, …/no-var-requires, …/parameter-properties, …/prefer-as-const, …/require-await, …/restrict-plus-operands, …/restrict-template-expressions, …/triple-slash-reference, …/unbound-method.
  • Removed: …/no-duplicate-imports (deprecated), …/no-new-object (deprecated).
• Rename type Constructor to AbstractConstructor and reintroduce Constructor as non-abstract.

🌎 External changes

• Turn on TypeScript option allowImportingTsExtensions along with @babel/preset-typescript option rewriteImportExtensions, enabling the use of TypeScript file extensions in imports and exports.
• Change typescript-eslint option parserOptions.project to true (from "./tsconfig.json") for improved monorepo support.
• Implement Rollup support for array exports in package.json.
• Add real typings to Babel, ESLint, and Rollup configurations.

🏠 Internal changes

• Change all TypeScript exports and imports to .ts file extensions.

🧹 Chores

• Upgrade dependencies.
• Clean lint.

v1.2.0: Add `clone()`, `nestInto()`; adjust lint rules

🌎 External changes

• Introduce new utility functions:
  • clone(): Duplicates a given object based on its prototype, optionally injecting new and/or modifying existing properties while preserving getters, setters, and other special members.
  • nestInto(): Nests a given series of keys into an object.
• Adjust lint rules:
  • Drop exemption of Jest mocks from import/export.
  • Drop exemption of TypeScript from react/jsx-props-no-spreading.
  • Turn off react/jsx-props-no-spreading.

🧹 Chores

• Upgrade dependencies.

v1.1.0: Adjust lint rules; upgrade to TypeScript 5.1

🌎 External changes

• Exempt Jest mocks and tests from lint rules react/forbid-foreign-prop-types, react/jsx-props-no-spreading.
• Exempt Jest mocks from lint rules import/export, import/prefer-default-export.
• Exempt CommonJS Jest mocks from lint rule import/no-unused-modules, as it only supports ESM.
• Relax lint rule react/no-unstable-nested-components by adding exception allowAsProps.
• Fix globs for Jest lint rules to include files in subdirectories of __mocks__ and __tests__.
• Narrow the return type of guard isObject() to be non-nullable.
• Upgrade to TypeScript 5.1.

🏠 Internal changes

• Implement minimum unit test coverage thresholds.

🧹 Chores

• Upgrade dependencies.

v1.0.0: Add JS/TS configuration exports; switch Babel plugins

⚠️ BREAKING CHANGES (if using lint rules)

• Transition from deprecated @babel/plugin-syntax-import-assertions to the new @babel/plugin-syntax-import-attributes and enable option deprecatedAssertSyntax for backward compatibility with import assertions. Since this is a peer dependency, consumers must switch plugins to match.

🌎 External changes

• Export JavaScript configuration as configuration/javascript.
• Export TypeScript configuration as configuration/typescript now that microsoft/TypeScript#48665 has been fixed.
• Update README with instructions on how to consume Babel, ESLint, JavaScript, rollup.js, and TypeScript configurations.

🏠 Internal changes

• Clean up package.json scripts and remove engines field.

🧹 Chores

• Upgrade dependencies.

v0.11.0: Add types `ExcludeFromReturnType`, `ReplaceReturnType`; adjust lint rules

🌎 External changes

• Add utility types ExcludeFromReturnType, ReplaceReturnType to facilitate the manipulation of functions' return types.
• Relax lint rule react/jsx-no-bind to allow allow function declarations.