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v3.49.0

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Denis Pushkarev
2026-03-16 23:06:20 +02:00
parent 1e5ca1883e
commit f59aeb3862
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CHANGELOG.md
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# Changelog # Changelog
### Unreleased ### Unreleased
- Improved performance of `atob`, `btoa`, `Uint8Array.fromHex`, `Uint8Array.prototype.setFromHex`, and `Uint8Array.prototype.toHex`, [#1503](https://github.com/zloirock/core-js/issues/1503), [#1464](https://github.com/zloirock/core-js/issues/1464), [#1510](https://github.com/zloirock/core-js/issues/1510) - Nothing
### [3.49.0 - 2026.03.16](https://github.com/zloirock/core-js/releases/tag/v3.49.0)
- Changes [v3.48.0...v3.49.0](https://github.com/zloirock/core-js/compare/v3.48.0...v3.49.0) (373 commits)
- [`Iterator.range`](https://github.com/tc39/proposal-iterator.range) updated following the actual spec version - [`Iterator.range`](https://github.com/tc39/proposal-iterator.range) updated following the actual spec version
- Throw a `RangeError` on `NaN` `start` / `end` / `step` - Throw a `RangeError` on `NaN` `start` / `end` / `step`
- Allow `null` as `optionOrStep` - Allow `null` as `optionOrStep`
- Improved accuracy of `Math.{ asinh, atanh }` polyfills with big and small values - Improved accuracy of `Math.{ asinh, atanh }` polyfills with big and small values
- Improved accuracy of `Number.prototype.toExponential` polyfills with big and small values - Improved accuracy of `Number.prototype.toExponential` polyfills with big and small values
- Improved performance of `atob`, `btoa`, `Uint8Array.fromHex`, `Uint8Array.prototype.setFromHex`, and `Uint8Array.prototype.toHex`, [#1503](https://github.com/zloirock/core-js/issues/1503), [#1464](https://github.com/zloirock/core-js/issues/1464), [#1510](https://github.com/zloirock/core-js/issues/1510), thanks [**@johnzhou721**](https://github.com/johnzhou721)
- Minor performance optimization polyfills of methods from [`Map` upsert proposal](https://github.com/tc39/proposal-upsert) - Minor performance optimization polyfills of methods from [`Map` upsert proposal](https://github.com/tc39/proposal-upsert)
- Polyfills of methods from [`Map` upsert proposal](https://github.com/tc39/proposal-upsert) from the pure version made generic to make it work with polyfilled and native collections - Polyfills of methods from [`Map` upsert proposal](https://github.com/tc39/proposal-upsert) from the pure version made generic to make it work with polyfilled and native collections
- Wrap `Symbol.for` in `Symbol.prototype.description` polyfill for correct handling of empty string descriptions - Wrap `Symbol.for` in `Symbol.prototype.description` polyfill for correct handling of empty string descriptions
README.md
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### Installation:[⬆](#index) ### Installation:[⬆](#index)
```sh ```sh
// global version // global version
npm install --save [email protected]8.0 npm install --save [email protected]9.0
// version without global namespace pollution // version without global namespace pollution
npm install --save [email protected]8.0 npm install --save [email protected]9.0
// bundled global version // bundled global version
npm install --save [email protected]8.0 npm install --save [email protected]9.0
``` ```
### `postinstall` message[⬆](#index) ### `postinstall` message[⬆](#index)
@@ -320,10 +320,10 @@ import 'regenerator-runtime/runtime';
#### `@babel/preset-env`[⬆](#index) #### `@babel/preset-env`[⬆](#index)
[`@babel/preset-env`](https://github.com/babel/babel/tree/master/packages/babel-preset-env) has `useBuiltIns` option, which optimizes the use of the global version of `core-js`. With `useBuiltIns` option, you should also set `corejs` option to the used version of `core-js`, like `corejs: '3.48'`. [`@babel/preset-env`](https://github.com/babel/babel/tree/master/packages/babel-preset-env) has `useBuiltIns` option, which optimizes the use of the global version of `core-js`. With `useBuiltIns` option, you should also set `corejs` option to the used version of `core-js`, like `corejs: '3.49'`.
> [!IMPORTANT] > [!IMPORTANT]
> It is recommended to specify the used minor `core-js` version, like `corejs: '3.48'`, instead of `corejs: 3`, since with `corejs: 3` will not be injected modules which were added in minor `core-js` releases. > It is recommended to specify the used minor `core-js` version, like `corejs: '3.49'`, instead of `corejs: 3`, since with `corejs: 3` will not be injected modules which were added in minor `core-js` releases.
--- ---
@@ -384,7 +384,7 @@ import 'core-js/modules/es.array.of';
var array = Array.of(1, 2, 3); var array = Array.of(1, 2, 3);
``` ```
By default, `@babel/preset-env` with `useBuiltIns: 'usage'` option only polyfills stable features, but you can enable polyfilling of proposals by the `proposals` option, as `corejs: { version: '3.48', proposals: true }`. By default, `@babel/preset-env` with `useBuiltIns: 'usage'` option only polyfills stable features, but you can enable polyfilling of proposals by the `proposals` option, as `corejs: { version: '3.49', proposals: true }`.
> [!IMPORTANT] > [!IMPORTANT]
> In the case of `useBuiltIns: 'usage'`, you should not add `core-js` imports by yourself, they will be added automatically. > In the case of `useBuiltIns: 'usage'`, you should not add `core-js` imports by yourself, they will be added automatically.
@@ -422,7 +422,7 @@ Fast JavaScript transpiler `swc` [contains integration with `core-js`](https://s
"env": { "env": {
"targets": "> 0.25%, not dead", "targets": "> 0.25%, not dead",
"mode": "entry", "mode": "entry",
"coreJs": "3.48" "coreJs": "3.49"
} }
} }
``` ```
deno/corejs/README.md
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*Example*: *Example*:
```js ```js
import 'https://deno.land/x/[email protected]8.0/index.js'; // <- at the top of your entry point import 'https://deno.land/x/[email protected]9.0/index.js'; // <- at the top of your entry point
Object.hasOwn({ foo: 42 }, 'foo'); // => true Object.hasOwn({ foo: 42 }, 'foo'); // => true
deno/corejs/index.js
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docs/web/docs/usage.md
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## Installation ## Installation
```sh ```sh
// global version // global version
npm install --save [email protected]8.0 npm install --save [email protected]9.0
// version without global namespace pollution // version without global namespace pollution
npm install --save [email protected]8.0 npm install --save [email protected]9.0
// bundled global version // bundled global version
npm install --save [email protected]8.0 npm install --save [email protected]9.0
``` ```
## Entry points ## Entry points
@@ -92,10 +92,10 @@ import 'regenerator-runtime/runtime';
## `@babel/preset-env` ## `@babel/preset-env`
[`@babel/preset-env`](https://github.com/babel/babel/tree/master/packages/babel-preset-env) has `useBuiltIns` option, which optimizes the use of the global version of `core-js`. With `useBuiltIns` option, you should also set `corejs` option to the used version of `core-js`, like `corejs: '3.48'`. [`@babel/preset-env`](https://github.com/babel/babel/tree/master/packages/babel-preset-env) has `useBuiltIns` option, which optimizes the use of the global version of `core-js`. With `useBuiltIns` option, you should also set `corejs` option to the used version of `core-js`, like `corejs: '3.49'`.
> [!IMPORTANT] > [!IMPORTANT]
> It is recommended to specify the used minor `core-js` version, like `corejs: '3.48'`, instead of `corejs: 3`, since with `corejs: 3` will not be injected modules which were added in minor `core-js` releases. > It is recommended to specify the used minor `core-js` version, like `corejs: '3.49'`, instead of `corejs: 3`, since with `corejs: 3` will not be injected modules which were added in minor `core-js` releases.
--- ---
@@ -156,7 +156,7 @@ import 'core-js/modules/es.array.of';
var array = Array.of(1, 2, 3); var array = Array.of(1, 2, 3);
``` ```
By default, `@babel/preset-env` with `useBuiltIns: 'usage'` option only polyfills stable features, but you can enable polyfilling of proposals by the `proposals` option, as `corejs: { version: '3.48', proposals: true }`. By default, `@babel/preset-env` with `useBuiltIns: 'usage'` option only polyfills stable features, but you can enable polyfilling of proposals by the `proposals` option, as `corejs: { version: '3.49', proposals: true }`.
> [!IMPORTANT] > [!IMPORTANT]
> In the case of `useBuiltIns: 'usage'`, you should not add `core-js` imports by yourself, they will be added automatically. > In the case of `useBuiltIns: 'usage'`, you should not add `core-js` imports by yourself, they will be added automatically.
@@ -194,7 +194,7 @@ Fast JavaScript transpiler `swc` [contains integration with `core-js`](https://s
"env": { "env": {
"targets": "> 0.25%, not dead", "targets": "> 0.25%, not dead",
"mode": "entry", "mode": "entry",
"coreJs": "3.48" "coreJs": "3.49"
} }
} }
``` ```
package-lock.json
Generated
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{ {
"name": "core-js", "name": "core-js",
"version": "3.48.0", "version": "3.49.0",
"lockfileVersion": 3, "lockfileVersion": 3,
"requires": true, "requires": true,
"packages": { "packages": {
"": { "": {
"version": "3.48.0", "version": "3.49.0",
"license": "MIT", "license": "MIT",
"workspaces": [ "workspaces": [
"./packages/*" "./packages/*"
@@ -5890,7 +5890,7 @@
} }
}, },
"packages/core-js": { "packages/core-js": {
"version": "3.48.0", "version": "3.49.0",
"hasInstallScript": true, "hasInstallScript": true,
"license": "MIT", "license": "MIT",
"funding": { "funding": {
@@ -5899,11 +5899,11 @@
} }
}, },
"packages/core-js-builder": { "packages/core-js-builder": {
"version": "3.48.0", "version": "3.49.0",
"license": "MIT", "license": "MIT",
"dependencies": { "dependencies": {
"core-js": "3.48.0", "core-js": "3.49.0",
"core-js-compat": "3.48.0", "core-js-compat": "3.49.0",
"mkdirp": ">=0.5.6 <1", "mkdirp": ">=0.5.6 <1",
"webpack": ">=4.47.0 <5" "webpack": ">=4.47.0 <5"
}, },
@@ -5916,7 +5916,7 @@
} }
}, },
"packages/core-js-bundle": { "packages/core-js-bundle": {
"version": "3.48.0", "version": "3.49.0",
"hasInstallScript": true, "hasInstallScript": true,
"license": "MIT", "license": "MIT",
"funding": { "funding": {
@@ -5925,7 +5925,7 @@
} }
}, },
"packages/core-js-compat": { "packages/core-js-compat": {
"version": "3.48.0", "version": "3.49.0",
"license": "MIT", "license": "MIT",
"dependencies": { "dependencies": {
"browserslist": "^4.28.1" "browserslist": "^4.28.1"
@@ -5936,7 +5936,7 @@
} }
}, },
"packages/core-js-pure": { "packages/core-js-pure": {
"version": "3.48.0", "version": "3.49.0",
"hasInstallScript": true, "hasInstallScript": true,
"license": "MIT", "license": "MIT",
"funding": { "funding": {
package.json
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{ {
"version": "3.48.0", "version": "3.49.0",
"repository": { "repository": {
"type": "git", "type": "git",
"url": "https://github.com/zloirock/core-js.git" "url": "https://github.com/zloirock/core-js.git"
packages/core-js-builder/package.json
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@@ -1,6 +1,6 @@
{ {
"name": "core-js-builder", "name": "core-js-builder",
"version": "3.48.0", "version": "3.49.0",
"type": "commonjs", "type": "commonjs",
"description": "core-js builder", "description": "core-js builder",
"repository": { "repository": {
@@ -26,8 +26,8 @@
"main": "index.js", "main": "index.js",
"types": "index.d.ts", "types": "index.d.ts",
"dependencies": { "dependencies": {
"core-js": "3.48.0", "core-js": "3.49.0",
"core-js-compat": "3.48.0", "core-js-compat": "3.49.0",
"mkdirp": ">=0.5.6 <1", "mkdirp": ">=0.5.6 <1",
"webpack": ">=4.47.0 <5" "webpack": ">=4.47.0 <5"
}, },
packages/core-js-bundle/package.json
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@@ -1,6 +1,6 @@
{ {
"name": "core-js-bundle", "name": "core-js-bundle",
"version": "3.48.0", "version": "3.49.0",
"type": "commonjs", "type": "commonjs",
"description": "Standard library", "description": "Standard library",
"keywords": [ "keywords": [
packages/core-js-compat/README.md
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@@ -27,7 +27,7 @@ const {
exclude: [ // optional list / filter of modules to exclude, the signature is similar to `modules` option exclude: [ // optional list / filter of modules to exclude, the signature is similar to `modules` option
'web.atob', 'web.atob',
], ],
version: '3.48', // used `core-js` version, by default - the latest version: '3.49', // used `core-js` version, by default - the latest
inverse: false, // inverse of the result - shows modules that are NOT required for the target environment inverse: false, // inverse of the result - shows modules that are NOT required for the target environment
}); });
@@ -129,9 +129,9 @@ require('core-js-compat/modules'); // => Array<ModuleName>
require('core-js-compat').modules; // => Array<ModuleName> require('core-js-compat').modules; // => Array<ModuleName>
// the subset of modules which available in the passed `core-js` version: // the subset of modules which available in the passed `core-js` version:
require('core-js-compat/get-modules-list-for-target-version')('3.48'); // => Array<ModuleName> require('core-js-compat/get-modules-list-for-target-version')('3.49'); // => Array<ModuleName>
// or // or
require('core-js-compat').getModulesListForTargetVersion('3.48'); // => Array<ModuleName> require('core-js-compat').getModulesListForTargetVersion('3.49'); // => Array<ModuleName>
``` ```
If you wanna help to improve this data, you could take a look at the related section of [`CONTRIBUTING.md`](https://github.com/zloirock/core-js/blob/master/CONTRIBUTING.md#how-to-update-core-js-compat-data). The visualization of compatibility data and the browser tests runner is available [here](http://zloirock.github.io/core-js/master/compat/), the example: If you wanna help to improve this data, you could take a look at the related section of [`CONTRIBUTING.md`](https://github.com/zloirock/core-js/blob/master/CONTRIBUTING.md#how-to-update-core-js-compat-data). The visualization of compatibility data and the browser tests runner is available [here](http://zloirock.github.io/core-js/master/compat/), the example:
packages/core-js-compat/package.json
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{ {
"name": "core-js-compat", "name": "core-js-compat",
"version": "3.48.0", "version": "3.49.0",
"type": "commonjs", "type": "commonjs",
"description": "core-js compat", "description": "core-js compat",
"repository": { "repository": {
packages/core-js-pure/package.json
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@@ -1,6 +1,6 @@
{ {
"name": "core-js-pure", "name": "core-js-pure",
"version": "3.48.0", "version": "3.49.0",
"type": "commonjs", "type": "commonjs",
"description": "Standard library", "description": "Standard library",
"keywords": [ "keywords": [
packages/core-js/internals/shared-store.js
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@@ -7,9 +7,9 @@ var SHARED = '__core-js_shared__';
var store = module.exports = globalThis[SHARED] || defineGlobalProperty(SHARED, {}); var store = module.exports = globalThis[SHARED] || defineGlobalProperty(SHARED, {});
(store.versions || (store.versions = [])).push({ (store.versions || (store.versions = [])).push({
version: '3.48.0', version: '3.49.0',
mode: IS_PURE ? 'pure' : 'global', mode: IS_PURE ? 'pure' : 'global',
copyright: '© 2013–2025 Denis Pushkarev (zloirock.ru), 2025–2026 CoreJS Company (core-js.io). All rights reserved.', copyright: '© 2013–2025 Denis Pushkarev (zloirock.ru), 2025–2026 CoreJS Company (core-js.io). All rights reserved.',
license: 'https://github.com/zloirock/core-js/blob/v3.48.0/LICENSE', license: 'https://github.com/zloirock/core-js/blob/v3.49.0/LICENSE',
source: 'https://github.com/zloirock/core-js' source: 'https://github.com/zloirock/core-js'
}); });
packages/core-js/package.json
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@@ -1,6 +1,6 @@
{ {
"name": "core-js", "name": "core-js",
"version": "3.48.0", "version": "3.49.0",
"type": "commonjs", "type": "commonjs",
"description": "Standard library", "description": "Standard library",
"keywords": [ "keywords": [