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  1. ## Changelog
  2. ##### 2.6.12 [LEGACY] - 2020.11.26
  3. - Added code points / code units explicit feature detection in `String#at` for preventing breakage code which use obsolete `String#at` proposal polyfill
  4. - Added `OPEN_SOURCE_CONTRIBUTOR` detection in `postinstall`
  5. - Added Drone CI detection in `postinstall`
  6. ##### 2.6.11 [LEGACY] - 2019.12.09
  7. - Returned usage of `node -e` in `postinstall` scripts for better cross-platform compatibility, [#582](https://github.com/zloirock/core-js/issues/582)
  8. - Improved CI detection in the `postinstall` script, [#707](https://github.com/zloirock/core-js/issues/707)
  9. ##### 2.6.10 [LEGACY] - 2019.10.13
  10. - Show similar `postinstall` messages only once per `npm i`, [#597](https://github.com/zloirock/core-js/issues/597)
  11. ##### 2.6.9 [LEGACY] - 2019.05.27
  12. - Some fixes and improvements of the `postinstall` script like support `npm` color config ([#556](https://github.com/zloirock/core-js/issues/556)) or adding support of `ADBLOCK` env variable
  13. ##### 2.6.8 [LEGACY] - 2019.05.22
  14. - Added a workaround of a strange `npx` bug on `postinstall`, [#551](https://github.com/zloirock/core-js/issues/551)
  15. ##### 2.6.7 [LEGACY] - 2019.05.21
  16. - Added one more workaround of alternative not completely correct `Symbol` polyfills, [#550](https://github.com/zloirock/core-js/issues/550), [#554](https://github.com/zloirock/core-js/issues/554)
  17. ##### 2.6.6 [LEGACY] - 2019.05.20
  18. - Fixed IE8- non-enumerable properties support in `Object.{ assign, entries, values }`, [#541](https://github.com/zloirock/core-js/issues/541)
  19. - Fixed support of primitives in `Object.getOwnPropertySymbols` in Chrome 38 / 39, [#539](https://github.com/zloirock/core-js/issues/539)
  20. - Show a message on `postinstall`
  21. ##### 2.6.5 - 2019.02.15
  22. - Fixed buggy `String#padStart` and `String#padEnd` mobile Safari implementations, [#414](https://github.com/zloirock/core-js/issues/414).
  23. ##### 2.6.4 - 2019.02.07
  24. - Added a workaround against crushing an old IE11.0.9600.16384 build, [#485](https://github.com/zloirock/core-js/issues/485).
  25. ##### 2.6.3 - 2019.01.22
  26. - Added a workaround for `babel-minify` bug, [#479](https://github.com/zloirock/core-js/issues/479)
  27. ##### 2.6.2 - 2019.01.10
  28. - Fixed handling of `$` in `String#replace`, [#471](https://github.com/zloirock/core-js/issues/471)
  29. ##### 2.6.1 - 2018.12.18
  30. - Fixed an issue with minified version, [#463](https://github.com/zloirock/core-js/issues/463)
  31. ##### 2.6.0 - 2018.12.05
  32. - Add direct .exec calling to `RegExp#{@@replace, @@split, @@match, @@search}`. Also, added fixes for `RegExp#exec` method. [#411](https://github.com/zloirock/core-js/issues/411), [#428](https://github.com/zloirock/core-js/issues/428), [#434](https://github.com/zloirock/core-js/issues/434), [#435](https://github.com/zloirock/core-js/issues/435), [#453](https://github.com/zloirock/core-js/issues/453), [#458](https://github.com/zloirock/core-js/issues/458), thanks [**@nicolo-ribaudo**](https://github.com/nicolo-ribaudo).
  33. ##### 2.5.7 - 2018.05.26
  34. - Get rid of reserved variable name `final`, related [#400](https://github.com/zloirock/core-js/issues/400)
  35. ##### 2.5.6 - 2018.05.07
  36. - Forced replace native `Promise` in V8 6.6 (Node 10 and Chrome 66) because of [a bug with resolving custom thenables](https://bugs.chromium.org/p/chromium/issues/detail?id=830565)
  37. - Added a workaround for usage buggy native LG WebOS 2 `Promise` in microtask implementation, [#396](https://github.com/zloirock/core-js/issues/396)
  38. - Added modern version internal debugging information about used versions
  39. ##### 2.5.5 - 2018.04.08
  40. - Fix some edge cases of `Reflect.set`, [#392](https://github.com/zloirock/core-js/issues/392) and [#393](https://github.com/zloirock/core-js/issues/393)
  41. ##### 2.5.4 - 2018.03.27
  42. - Fixed one case of deoptimization built-in iterators in V8, related [#377](https://github.com/zloirock/core-js/issues/377)
  43. - Fixed some cases of iterators feature detection, [#368](https://github.com/zloirock/core-js/issues/368)
  44. - Fixed manually entered NodeJS domains issue in `Promise`, [#367](https://github.com/zloirock/core-js/issues/367)
  45. - Fixed `Number.{parseInt, parseFloat}` entry points
  46. - Fixed `__(define|lookup)[GS]etter__` import in the `library` version
  47. ##### 2.5.3 - 2017.12.12
  48. - Fixed calling `onunhandledrejectionhandler` multiple times for one `Promise` chain, [#318](https://github.com/zloirock/core-js/issues/318)
  49. - Forced replacement of `String#{padStart, padEnd}` in Safari 10 because of [a bug](https://bugs.webkit.org/show_bug.cgi?id=161944), [#280](https://github.com/zloirock/core-js/issues/280)
  50. - Fixed `Array#@@iterator` in a very rare version of `WebKit`, [#236](https://github.com/zloirock/core-js/issues/236) and [#237](https://github.com/zloirock/core-js/issues/237)
  51. - One more [#345](https://github.com/zloirock/core-js/issues/345)-related fix
  52. ##### 2.5.2 - 2017.12.09
  53. - `MutationObserver` no longer used for microtask implementation in iOS Safari because of bug with scrolling, [#339](https://github.com/zloirock/core-js/issues/339)
  54. - Fixed `JSON.stringify(undefined, replacer)` case in the wrapper from the `Symbol` polyfill, [#345](https://github.com/zloirock/core-js/issues/345)
  55. - `Array()` calls changed to `new Array()` for V8 optimisation
  56. ##### 2.5.1 - 2017.09.01
  57. - Updated `Promise#finally` per [tc39/proposal-promise-finally#37](https://github.com/tc39/proposal-promise-finally/issues/37)
  58. - Optimized usage of some internal helpers for reducing size of `shim` version
  59. - Fixed some entry points for virtual methods
  60. ##### 2.5.0 - 2017.08.05
  61. - Added `Promise#finally` [stage 3 proposal](https://github.com/tc39/proposal-promise-finally), [#225](https://github.com/zloirock/core-js/issues/225)
  62. - Added `Promise.try` [stage 1 proposal](https://github.com/tc39/proposal-promise-try)
  63. - Added `Array#flatten` and `Array#flatMap` [stage 1 proposal](https://tc39.github.io/proposal-flatMap)
  64. - Added `.of` and `.from` methods on collection constructors [stage 1 proposal](https://github.com/tc39/proposal-setmap-offrom):
  65. - `Map.of`
  66. - `Set.of`
  67. - `WeakSet.of`
  68. - `WeakMap.of`
  69. - `Map.from`
  70. - `Set.from`
  71. - `WeakSet.from`
  72. - `WeakMap.from`
  73. - Added `Math` extensions [stage 1 proposal](https://github.com/rwaldron/proposal-math-extensions), [#226](https://github.com/zloirock/core-js/issues/226):
  74. - `Math.clamp`
  75. - `Math.DEG_PER_RAD`
  76. - `Math.degrees`
  77. - `Math.fscale`
  78. - `Math.RAD_PER_DEG`
  79. - `Math.radians`
  80. - `Math.scale`
  81. - Added `Math.signbit` [stage 1 proposal](http://jfbastien.github.io/papers/Math.signbit.html)
  82. - Updated `global` [stage 3 proposal](https://github.com/tc39/proposal-global) - added `global` global object, `System.global` deprecated
  83. - Updated `Object.getOwnPropertyDescriptors` to the [final version](https://tc39.github.io/ecma262/2017/#sec-object.getownpropertydescriptors) - it should not create properties if descriptors are `undefined`
  84. - Updated the list of iterable DOM collections, [#249](https://github.com/zloirock/core-js/issues/249), added:
  85. - `CSSStyleDeclaration#@@iterator`
  86. - `CSSValueList#@@iterator`
  87. - `ClientRectList#@@iterator`
  88. - `DOMRectList#@@iterator`
  89. - `DOMStringList#@@iterator`
  90. - `DataTransferItemList#@@iterator`
  91. - `FileList#@@iterator`
  92. - `HTMLAllCollection#@@iterator`
  93. - `HTMLCollection#@@iterator`
  94. - `HTMLFormElement#@@iterator`
  95. - `HTMLSelectElement#@@iterator`
  96. - `MimeTypeArray#@@iterator`
  97. - `NamedNodeMap#@@iterator`
  98. - `PaintRequestList#@@iterator`
  99. - `Plugin#@@iterator`
  100. - `PluginArray#@@iterator`
  101. - `SVGLengthList#@@iterator`
  102. - `SVGNumberList#@@iterator`
  103. - `SVGPathSegList#@@iterator`
  104. - `SVGPointList#@@iterator`
  105. - `SVGStringList#@@iterator`
  106. - `SVGTransformList#@@iterator`
  107. - `SourceBufferList#@@iterator`
  108. - `TextTrackCueList#@@iterator`
  109. - `TextTrackList#@@iterator`
  110. - `TouchList#@@iterator`
  111. - Updated stages of proposals:
  112. - [`Object.getOwnPropertyDescriptors`](https://github.com/tc39/proposal-object-getownpropertydescriptors) to [stage 4 (ES2017)](https://tc39.github.io/ecma262/2017/#sec-object.getownpropertydescriptors)
  113. - [String padding](https://github.com/tc39/proposal-string-pad-start-end) to [stage 4 (ES2017)](https://tc39.github.io/ecma262/2017/#sec-string.prototype.padend)
  114. - [`global`](https://github.com/tc39/proposal-global) to [stage 3](https://github.com/rwaldron/tc39-notes/blob/master/es7/2016-09/sept-28.md#revisit-systemglobal--global)
  115. - [String trimming](https://github.com/tc39/proposal-string-left-right-trim) to [stage 2](https://github.com/rwaldron/tc39-notes/blob/master/es7/2016-07/jul-27.md#10iic-trimstarttrimend)
  116. - Updated typed arrays to the modern (ES2016+) arguments validation,
  117. [#293](https://github.com/zloirock/core-js/pull/293)
  118. - Fixed `%TypedArray%.from` Safari bug, [#285](https://github.com/zloirock/core-js/issues/285)
  119. - Fixed compatibility with old version of Prototype.js, [#278](https://github.com/zloirock/core-js/issues/278), [#289](https://github.com/zloirock/core-js/issues/289)
  120. - `Function#name` no longer cache the result for correct behaviour with inherited constructors, [#296](https://github.com/zloirock/core-js/issues/296)
  121. - Added errors on incorrect context of collection methods, [#272](https://github.com/zloirock/core-js/issues/272)
  122. - Fixed conversion typed array constructors to string, fix [#300](https://github.com/zloirock/core-js/issues/300)
  123. - Fixed `Set#size` with debugger ReactNative for Android, [#297](https://github.com/zloirock/core-js/issues/297)
  124. - Fixed an issue with Electron-based debugger, [#230](https://github.com/zloirock/core-js/issues/230)
  125. - Fixed compatibility with incomplete third-party `WeakMap` polyfills, [#252](https://github.com/zloirock/core-js/pull/252)
  126. - Added a fallback for `Date#toJSON` in engines without native `Date#toISOString`, [#220](https://github.com/zloirock/core-js/issues/220)
  127. - Added support for Sphere Dispatch API, [#286](https://github.com/zloirock/core-js/pull/286)
  128. - Seriously changed the coding style and the [ESLint config](https://github.com/zloirock/core-js/blob/master/.eslintrc.js)
  129. - Updated many dev dependencies (`webpack`, `uglify`, etc)
  130. - Some other minor fixes and optimizations
  131. ##### 2.4.1 - 2016.07.18
  132. - Fixed `script` tag for some parsers, [#204](https://github.com/zloirock/core-js/issues/204), [#216](https://github.com/zloirock/core-js/issues/216)
  133. - Removed some unused variables, [#217](https://github.com/zloirock/core-js/issues/217), [#218](https://github.com/zloirock/core-js/issues/218)
  134. - Fixed MS Edge `Reflect.construct` and `Reflect.apply` - they should not allow primitive as `argumentsList` argument
  135. ##### 1.2.7 [LEGACY] - 2016.07.18
  136. - Some fixes for issues like [#159](https://github.com/zloirock/core-js/issues/159), [#186](https://github.com/zloirock/core-js/issues/186), [#194](https://github.com/zloirock/core-js/issues/194), [#207](https://github.com/zloirock/core-js/issues/207)
  137. ##### 2.4.0 - 2016.05.08
  138. - Added `Observable`, [stage 1 proposal](https://github.com/zenparsing/es-observable)
  139. - Fixed behavior `Object.{getOwnPropertySymbols, getOwnPropertyDescriptor}` and `Object#propertyIsEnumerable` on `Object.prototype`
  140. - `Reflect.construct` and `Reflect.apply` should throw an error if `argumentsList` argument is not an object, [#194](https://github.com/zloirock/core-js/issues/194)
  141. ##### 2.3.0 - 2016.04.24
  142. - Added `asap` for enqueuing microtasks, [stage 0 proposal](https://github.com/rwaldron/tc39-notes/blob/master/es6/2014-09/sept-25.md#510-globalasap-for-enqueuing-a-microtask)
  143. - Added well-known symbol `Symbol.asyncIterator` for [stage 2 async iteration proposal](https://github.com/tc39/proposal-async-iteration)
  144. - Added well-known symbol `Symbol.observable` for [stage 1 observables proposal](https://github.com/zenparsing/es-observable)
  145. - `String#{padStart, padEnd}` returns original string if filler is empty string, [TC39 meeting notes](https://github.com/rwaldron/tc39-notes/blob/master/es7/2016-03/march-29.md#stringprototypepadstartpadend)
  146. - `Object.values` and `Object.entries` moved to stage 4 from 3, [TC39 meeting notes](https://github.com/rwaldron/tc39-notes/blob/master/es7/2016-03/march-29.md#objectvalues--objectentries)
  147. - `System.global` moved to stage 2 from 1, [TC39 meeting notes](https://github.com/rwaldron/tc39-notes/blob/master/es7/2016-03/march-29.md#systemglobal)
  148. - `Map#toJSON` and `Set#toJSON` rejected and will be removed from the next major release, [TC39 meeting notes](https://github.com/rwaldron/tc39-notes/blob/master/es7/2016-03/march-31.md#mapprototypetojsonsetprototypetojson)
  149. - `Error.isError` withdrawn and will be removed from the next major release, [TC39 meeting notes](https://github.com/rwaldron/tc39-notes/blob/master/es7/2016-03/march-29.md#erroriserror)
  150. - Added fallback for `Function#name` on non-extensible functions and functions with broken `toString` conversion, [#193](https://github.com/zloirock/core-js/issues/193)
  151. ##### 2.2.2 - 2016.04.06
  152. - Added conversion `-0` to `+0` to `Array#{indexOf, lastIndexOf}`, [ES2016 fix](https://github.com/tc39/ecma262/pull/316)
  153. - Added fixes for some `Math` methods in Tor Browser
  154. - `Array.{from, of}` no longer calls prototype setters
  155. - Added workaround over Chrome DevTools strange behavior, [#186](https://github.com/zloirock/core-js/issues/186)
  156. ##### 2.2.1 - 2016.03.19
  157. - Fixed `Object.getOwnPropertyNames(window)` `2.1+` versions bug, [#181](https://github.com/zloirock/core-js/issues/181)
  158. ##### 2.2.0 - 2016.03.15
  159. - Added `String#matchAll`, [proposal](https://github.com/tc39/String.prototype.matchAll)
  160. - Added `Object#__(define|lookup)[GS]etter__`, [annex B ES2017](https://github.com/tc39/ecma262/pull/381)
  161. - Added `@@toPrimitive` methods to `Date` and `Symbol`
  162. - Fixed `%TypedArray%#slice` in Edge ~ 13 (throws with `@@species` and wrapped / inherited constructor)
  163. - Some other minor fixes
  164. ##### 2.1.5 - 2016.03.12
  165. - Improved support NodeJS domains in `Promise#then`, [#180](https://github.com/zloirock/core-js/issues/180)
  166. - Added fallback for `Date#toJSON` bug in Qt Script, [#173](https://github.com/zloirock/core-js/issues/173#issuecomment-193972502)
  167. ##### 2.1.4 - 2016.03.08
  168. - Added fallback for `Symbol` polyfill in Qt Script, [#173](https://github.com/zloirock/core-js/issues/173)
  169. - Added one more fallback for IE11 `Script Access Denied` error with iframes, [#165](https://github.com/zloirock/core-js/issues/165)
  170. ##### 2.1.3 - 2016.02.29
  171. - Added fallback for [`es6-promise` package bug](https://github.com/stefanpenner/es6-promise/issues/169), [#176](https://github.com/zloirock/core-js/issues/176)
  172. ##### 2.1.2 - 2016.02.29
  173. - Some minor `Promise` fixes:
  174. - Browsers `rejectionhandled` event better HTML spec complaint
  175. - Errors in unhandled rejection handlers should not cause any problems
  176. - Fixed typo in feature detection
  177. ##### 2.1.1 - 2016.02.22
  178. - Some `Promise` improvements:
  179. - Feature detection:
  180. - **Added detection unhandled rejection tracking support - now it's available everywhere**, [#140](https://github.com/zloirock/core-js/issues/140)
  181. - Added detection `@@species` pattern support for completely correct subclassing
  182. - Removed usage `Object.setPrototypeOf` from feature detection and noisy console message about it in FF
  183. - `Promise.all` fixed for some very specific cases
  184. ##### 2.1.0 - 2016.02.09
  185. - **API**:
  186. - ES5 polyfills are split and logic, used in other polyfills, moved to internal modules
  187. - **All entry point works in ES3 environment like IE8- without `core-js/(library/)es5`**
  188. - **Added all missed single entry points for ES5 polyfills**
  189. - Separated ES5 polyfills moved to the ES6 namespace. Why?
  190. - Mainly, for prevent duplication features in different namespaces - logic of most required ES5 polyfills changed in ES6+:
  191. - Already added changes for: `Object` statics - should accept primitives, new whitespaces lists in `String#trim`, `parse(Int|float)`, `RegExp#toString` logic, `String#split`, etc
  192. - Should be changed in the future: `@@species` and `ToLength` logic in `Array` methods, `Date` parsing, `Function#bind`, etc
  193. - Should not be changed only several features like `Array.isArray` and `Date.now`
  194. - Some ES5 polyfills required for modern engines
  195. - All old entry points should work fine, but in the next major release API can be changed
  196. - `Object.getOwnPropertyDescriptors` moved to the stage 3, [January TC39 meeting](https://github.com/rwaldron/tc39-notes/blob/master/es7/2016-01/2016-01-28.md#objectgetownpropertydescriptors-to-stage-3-jordan-harband-low-priority-but-super-quick)
  197. - Added `umd` option for [custom build process](https://github.com/zloirock/core-js#custom-build-from-external-scripts), [#169](https://github.com/zloirock/core-js/issues/169)
  198. - Returned entry points for `Array` statics, removed in `2.0`, for compatibility with `babel` `6` and for future fixes
  199. - **Deprecated**:
  200. - `Reflect.enumerate` deprecated and will be removed from the next major release, [January TC39 meeting](https://github.com/rwaldron/tc39-notes/blob/master/es7/2016-01/2016-01-28.md#5xix-revisit-proxy-enumerate---revisit-decision-to-exhaust-iterator)
  201. - **New Features**:
  202. - Added [`Reflect` metadata API](https://github.com/jonathandturner/decorators/blob/master/specs/metadata.md) as a pre-strawman feature, [#152](https://github.com/zloirock/core-js/issues/152):
  203. - `Reflect.defineMetadata`
  204. - `Reflect.deleteMetadata`
  205. - `Reflect.getMetadata`
  206. - `Reflect.getMetadataKeys`
  207. - `Reflect.getOwnMetadata`
  208. - `Reflect.getOwnMetadataKeys`
  209. - `Reflect.hasMetadata`
  210. - `Reflect.hasOwnMetadata`
  211. - `Reflect.metadata`
  212. - Implementation / fixes `Date#toJSON`
  213. - Fixes for `parseInt` and `Number.parseInt`
  214. - Fixes for `parseFloat` and `Number.parseFloat`
  215. - Fixes for `RegExp#toString`
  216. - Fixes for `Array#sort`
  217. - Fixes for `Number#toFixed`
  218. - Fixes for `Number#toPrecision`
  219. - Additional fixes for `String#split` (`RegExp#@@split`)
  220. - **Improvements**:
  221. - Correct subclassing wrapped collections, `Number` and `RegExp` constructors with native class syntax
  222. - Correct support `SharedArrayBuffer` and buffers from other realms in typed arrays wrappers
  223. - Additional validations for `Object.{defineProperty, getOwnPropertyDescriptor}` and `Reflect.defineProperty`
  224. - **Bug Fixes**:
  225. - Fixed some cases `Array#lastIndexOf` with negative second argument
  226. ##### 2.0.3 - 2016.01.11
  227. - Added fallback for V8 ~ Chrome 49 `Promise` subclassing bug causes unhandled rejection on feature detection, [#159](https://github.com/zloirock/core-js/issues/159)
  228. - Added fix for very specific environments with global `window === null`
  229. ##### 2.0.2 - 2016.01.04
  230. - Temporarily removed `length` validation from `Uint8Array` constructor wrapper. Reason - [bug in `ws` module](https://github.com/websockets/ws/pull/645) (-> `socket.io`) which passes to `Buffer` constructor -> `Uint8Array` float and uses [the `V8` bug](https://code.google.com/p/v8/issues/detail?id=4552) for conversion to int (by the spec should be thrown an error). [It creates problems for many people.](https://github.com/karma-runner/karma/issues/1768) I hope, it will be returned after fixing this bug in `V8`.
  231. ##### 2.0.1 - 2015.12.31
  232. - Forced usage `Promise.resolve` polyfill in the `library` version for correct work with wrapper
  233. - `Object.assign` should be defined in the strict mode -> throw an error on extension non-extensible objects, [#154](https://github.com/zloirock/core-js/issues/154)
  234. ##### 2.0.0 - 2015.12.24
  235. - Added implementations and fixes [Typed Arrays](https://github.com/zloirock/core-js#ecmascript-6-typed-arrays)-related features
  236. - `ArrayBuffer`, `ArrayBuffer.isView`, `ArrayBuffer#slice`
  237. - `DataView` with all getter / setter methods
  238. - `Int8Array`, `Uint8Array`, `Uint8ClampedArray`, `Int16Array`, `Uint16Array`, `Int32Array`, `Uint32Array`, `Float32Array` and `Float64Array` constructors
  239. - `%TypedArray%.{for, of}`, `%TypedArray%#{copyWithin, every, fill, filter, find, findIndex, forEach, indexOf, includes, join, lastIndexOf, map, reduce, reduceRight, reverse, set, slice, some, sort, subarray, values, keys, entries, @@iterator, ...}`
  240. - Added [`System.global`](https://github.com/zloirock/core-js#ecmascript-7-proposals), [proposal](https://github.com/tc39/proposal-global), [November TC39 meeting](https://github.com/rwaldron/tc39-notes/tree/master/es7/2015-11/nov-19.md#systemglobal-jhd)
  241. - Added [`Error.isError`](https://github.com/zloirock/core-js#ecmascript-7-proposals), [proposal](https://github.com/ljharb/proposal-is-error), [November TC39 meeting](https://github.com/rwaldron/tc39-notes/tree/master/es7/2015-11/nov-19.md#jhd-erroriserror)
  242. - Added [`Math.{iaddh, isubh, imulh, umulh}`](https://github.com/zloirock/core-js#ecmascript-7-proposals), [proposal](https://gist.github.com/BrendanEich/4294d5c212a6d2254703)
  243. - `RegExp.escape` moved from the `es7` to the non-standard `core` namespace, [July TC39 meeting](https://github.com/rwaldron/tc39-notes/blob/master/es7/2015-07/july-28.md#62-regexpescape) - too slow, but it's condition of stability, [#116](https://github.com/zloirock/core-js/issues/116)
  244. - [`Promise`](https://github.com/zloirock/core-js#ecmascript-6-promise)
  245. - Some performance optimisations
  246. - Added basic support [`rejectionHandled` event / `onrejectionhandled` handler](https://github.com/zloirock/core-js#unhandled-rejection-tracking) to the polyfill
  247. - Removed usage `@@species` from `Promise.{all, race}`, [November TC39 meeting](https://github.com/rwaldron/tc39-notes/tree/master/es7/2015-11/nov-18.md#conclusionresolution-2)
  248. - Some improvements [collections polyfills](https://github.com/zloirock/core-js#ecmascript-6-collections)
  249. - `O(1)` and preventing possible leaks with frozen keys, [#134](https://github.com/zloirock/core-js/issues/134)
  250. - Correct observable state object keys
  251. - Renamed `String#{padLeft, padRight}` -> [`String#{padStart, padEnd}`](https://github.com/zloirock/core-js#ecmascript-7-proposals), [proposal](https://github.com/tc39/proposal-string-pad-start-end), [November TC39 meeting](https://github.com/rwaldron/tc39-notes/tree/master/es7/2015-11/nov-17.md#conclusionresolution-2) (they want to rename it on each meeting?O_o), [#132](https://github.com/zloirock/core-js/issues/132)
  252. - Added [`String#{trimStart, trimEnd}` as aliases for `String#{trimLeft, trimRight}`](https://github.com/zloirock/core-js#ecmascript-7-proposals), [proposal](https://github.com/sebmarkbage/ecmascript-string-left-right-trim), [November TC39 meeting](https://github.com/rwaldron/tc39-notes/tree/master/es7/2015-11/nov-17.md#conclusionresolution-2)
  253. - Added [annex B HTML methods](https://github.com/zloirock/core-js#ecmascript-6-string) - ugly, but also [the part of the spec](http://www.ecma-international.org/ecma-262/6.0/#sec-string.prototype.anchor)
  254. - Added little fix for [`Date#toString`](https://github.com/zloirock/core-js#ecmascript-6-date) - `new Date(NaN).toString()` [should be `'Invalid Date'`](http://www.ecma-international.org/ecma-262/6.0/#sec-todatestring)
  255. - Added [`{keys, values, entries, @@iterator}` methods to DOM collections](https://github.com/zloirock/core-js#iterable-dom-collections) which should have [iterable interface](https://heycam.github.io/webidl/#idl-iterable) or should be [inherited from `Array`](https://heycam.github.io/webidl/#LegacyArrayClass) - `NodeList`, `DOMTokenList`, `MediaList`, `StyleSheetList`, `CSSRuleList`.
  256. - Removed Mozilla `Array` generics - [deprecated and will be removed from FF](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array#Array_generic_methods), [looks like strawman is dead](http://wiki.ecmascript.org/doku.php?id=strawman:array_statics), available [alternative shim](https://github.com/plusdude/array-generics)
  257. - Removed `core.log` module
  258. - CommonJS API
  259. - Added entry points for [virtual methods](https://github.com/zloirock/core-js#commonjs-and-prototype-methods-without-global-namespace-pollution)
  260. - Added entry points for [stages proposals](https://github.com/zloirock/core-js#ecmascript-7-proposals)
  261. - Some other minor changes
  262. - [Custom build from external scripts](https://github.com/zloirock/core-js#custom-build-from-external-scripts) moved to the separate package for preventing problems with dependencies
  263. - Changed `$` prefix for internal modules file names because Team Foundation Server does not support it, [#129](https://github.com/zloirock/core-js/issues/129)
  264. - Additional fix for `SameValueZero` in V8 ~ Chromium 39-42 collections
  265. - Additional fix for FF27 `Array` iterator
  266. - Removed usage shortcuts for `arguments` object - old WebKit bug, [#150](https://github.com/zloirock/core-js/issues/150)
  267. - `{Map, Set}#forEach` non-generic, [#144](https://github.com/zloirock/core-js/issues/144)
  268. - Many other improvements
  269. ##### 1.2.6 - 2015.11.09
  270. * Reject with `TypeError` on attempt resolve promise itself
  271. * Correct behavior with broken `Promise` subclass constructors / methods
  272. * Added `Promise`-based fallback for microtask
  273. * Fixed V8 and FF `Array#{values, @@iterator}.name`
  274. * Fixed IE7- `[1, 2].join(undefined) -> '1,2'`
  275. * Some other fixes / improvements / optimizations
  276. ##### 1.2.5 - 2015.11.02
  277. * Some more `Number` constructor fixes:
  278. * Fixed V8 ~ Node 0.8 bug: `Number('+0x1')` should be `NaN`
  279. * Fixed `Number(' 0b1\n')` case, should be `1`
  280. * Fixed `Number()` case, should be `0`
  281. ##### 1.2.4 - 2015.11.01
  282. * Fixed `Number('0b12') -> NaN` case in the shim
  283. * Fixed V8 ~ Chromium 40- bug - `Weak(Map|Set)#{delete, get, has}` should not throw errors [#124](https://github.com/zloirock/core-js/issues/124)
  284. * Some other fixes and optimizations
  285. ##### 1.2.3 - 2015.10.23
  286. * Fixed some problems related old V8 bug `Object('a').propertyIsEnumerable(0) // => false`, for example, `Object.assign({}, 'qwe')` from the last release
  287. * Fixed `.name` property and `Function#toString` conversion some polyfilled methods
  288. * Fixed `Math.imul` arity in Safari 8-
  289. ##### 1.2.2 - 2015.10.18
  290. * Improved optimisations for V8
  291. * Fixed build process from external packages, [#120](https://github.com/zloirock/core-js/pull/120)
  292. * One more `Object.{assign, values, entries}` fix for [**very** specific case](https://github.com/ljharb/proposal-object-values-entries/issues/5)
  293. ##### 1.2.1 - 2015.10.02
  294. * Replaced fix `JSON.stringify` + `Symbol` behavior from `.toJSON` method to wrapping `JSON.stringify` - little more correct, [compat-table/642](https://github.com/kangax/compat-table/pull/642)
  295. * Fixed typo which broke tasks scheduler in WebWorkers in old FF, [#114](https://github.com/zloirock/core-js/pull/114)
  296. ##### 1.2.0 - 2015.09.27
  297. * Added browser [`Promise` rejection hook](#unhandled-rejection-tracking), [#106](https://github.com/zloirock/core-js/issues/106)
  298. * Added correct [`IsRegExp`](http://www.ecma-international.org/ecma-262/6.0/#sec-isregexp) logic to [`String#{includes, startsWith, endsWith}`](https://github.com/zloirock/core-js/#ecmascript-6-string) and [`RegExp` constructor](https://github.com/zloirock/core-js/#ecmascript-6-regexp), `@@match` case, [example](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/match#Disabling_the_isRegExp_check)
  299. * Updated [`String#leftPad`](https://github.com/zloirock/core-js/#ecmascript-7-proposals) [with proposal](https://github.com/ljharb/proposal-string-pad-left-right/issues/6): string filler truncated from the right side
  300. * Replaced V8 [`Object.assign`](https://github.com/zloirock/core-js/#ecmascript-6-object) - its properties order not only [incorrect](https://github.com/sindresorhus/object-assign/issues/22), it is non-deterministic and it causes some problems
  301. * Fixed behavior with deleted in getters properties for `Object.{`[`assign`](https://github.com/zloirock/core-js/#ecmascript-6-object)`, `[`entries, values`](https://github.com/zloirock/core-js/#ecmascript-7-proposals)`}`, [example](http://goo.gl/iQE01c)
  302. * Fixed [`Math.sinh`](https://github.com/zloirock/core-js/#ecmascript-6-math) with very small numbers in V8 near Chromium 38
  303. * Some other fixes and optimizations
  304. ##### 1.1.4 - 2015.09.05
  305. * Fixed support symbols in FF34-35 [`Object.assign`](https://github.com/zloirock/core-js/#ecmascript-6-object)
  306. * Fixed [collections iterators](https://github.com/zloirock/core-js/#ecmascript-6-iterators) in FF25-26
  307. * Fixed non-generic WebKit [`Array.of`](https://github.com/zloirock/core-js/#ecmascript-6-array)
  308. * Some other fixes and optimizations
  309. ##### 1.1.3 - 2015.08.29
  310. * Fixed support Node.js domains in [`Promise`](https://github.com/zloirock/core-js/#ecmascript-6-promise), [#103](https://github.com/zloirock/core-js/issues/103)
  311. ##### 1.1.2 - 2015.08.28
  312. * Added `toJSON` method to [`Symbol`](https://github.com/zloirock/core-js/#ecmascript-6-symbol) polyfill and to MS Edge implementation for expected `JSON.stringify` result w/o patching this method
  313. * Replaced [`Reflect.construct`](https://github.com/zloirock/core-js/#ecmascript-6-reflect) implementations w/o correct support third argument
  314. * Fixed `global` detection with changed `document.domain` in ~IE8, [#100](https://github.com/zloirock/core-js/issues/100)
  315. ##### 1.1.1 - 2015.08.20
  316. * Added more correct microtask implementation for [`Promise`](#ecmascript-6-promise)
  317. ##### 1.1.0 - 2015.08.17
  318. * Updated [string padding](https://github.com/zloirock/core-js/#ecmascript-7-proposals) to [actual proposal](https://github.com/ljharb/proposal-string-pad-left-right) - renamed, minor internal changes:
  319. * `String#lpad` -> `String#padLeft`
  320. * `String#rpad` -> `String#padRight`
  321. * Added [string trim functions](#ecmascript-7-proposals) - [proposal](https://github.com/sebmarkbage/ecmascript-string-left-right-trim), defacto standard - required only for IE11- and fixed for some old engines:
  322. * `String#trimLeft`
  323. * `String#trimRight`
  324. * [`String#trim`](https://github.com/zloirock/core-js/#ecmascript-6-string) fixed for some engines by es6 spec and moved from `es5` to single `es6` module
  325. * Splitted [`es6.object.statics-accept-primitives`](https://github.com/zloirock/core-js/#ecmascript-6-object)
  326. * Caps for `freeze`-family `Object` methods moved from `es5` to `es6` namespace and joined with [es6 wrappers](https://github.com/zloirock/core-js/#ecmascript-6-object)
  327. * `es5` [namespace](https://github.com/zloirock/core-js/#commonjs) also includes modules, moved to `es6` namespace - you can use it as before
  328. * Increased `MessageChannel` priority in `$.task`, [#95](https://github.com/zloirock/core-js/issues/95)
  329. * Does not get `global.Symbol` on each getting iterator, if you wanna use alternative `Symbol` shim - add it before `core-js`
  330. * [`Reflect.construct`](https://github.com/zloirock/core-js/#ecmascript-6-reflect) optimized and fixed for some cases
  331. * Simplified [`Reflect.enumerate`](https://github.com/zloirock/core-js/#ecmascript-6-reflect), see [this question](https://esdiscuss.org/topic/question-about-enumerate-and-property-decision-timing)
  332. * Some corrections in [`Math.acosh`](https://github.com/zloirock/core-js/#ecmascript-6-math)
  333. * Fixed [`Math.imul`](https://github.com/zloirock/core-js/#ecmascript-6-math) for old WebKit
  334. * Some fixes in string / RegExp [well-known symbols](https://github.com/zloirock/core-js/#ecmascript-6-regexp) logic
  335. * Some other fixes and optimizations
  336. ##### 1.0.1 - 2015.07.31
  337. * Some fixes for final MS Edge, replaced broken native `Reflect.defineProperty`
  338. * Some minor fixes and optimizations
  339. * Changed compression `client/*.min.js` options for safe `Function#name` and `Function#length`, should be fixed [#92](https://github.com/zloirock/core-js/issues/92)
  340. ##### 1.0.0 - 2015.07.22
  341. * Added logic for [well-known symbols](https://github.com/zloirock/core-js/#ecmascript-6-regexp):
  342. * `Symbol.match`
  343. * `Symbol.replace`
  344. * `Symbol.split`
  345. * `Symbol.search`
  346. * Actualized and optimized work with iterables:
  347. * Optimized [`Map`, `Set`, `WeakMap`, `WeakSet` constructors](https://github.com/zloirock/core-js/#ecmascript-6-collections), [`Promise.all`, `Promise.race`](https://github.com/zloirock/core-js/#ecmascript-6-promise) for default `Array Iterator`
  348. * Optimized [`Array.from`](https://github.com/zloirock/core-js/#ecmascript-6-array) for default `Array Iterator`
  349. * Added [`core.getIteratorMethod`](https://github.com/zloirock/core-js/#ecmascript-6-iterators) helper
  350. * Uses enumerable properties in shimmed instances - collections, iterators, etc for optimize performance
  351. * Added support native constructors to [`Reflect.construct`](https://github.com/zloirock/core-js/#ecmascript-6-reflect) with 2 arguments
  352. * Added support native constructors to [`Function#bind`](https://github.com/zloirock/core-js/#ecmascript-5) shim with `new`
  353. * Removed obsolete `.clear` methods native [`Weak`-collections](https://github.com/zloirock/core-js/#ecmascript-6-collections)
  354. * Maximum modularity, reduced minimal custom build size, separated into submodules:
  355. * [`es6.reflect`](https://github.com/zloirock/core-js/#ecmascript-6-reflect)
  356. * [`es6.regexp`](https://github.com/zloirock/core-js/#ecmascript-6-regexp)
  357. * [`es6.math`](https://github.com/zloirock/core-js/#ecmascript-6-math)
  358. * [`es6.number`](https://github.com/zloirock/core-js/#ecmascript-6-number)
  359. * [`es7.object.to-array`](https://github.com/zloirock/core-js/#ecmascript-7-proposals)
  360. * [`core.object`](https://github.com/zloirock/core-js/#object)
  361. * [`core.string`](https://github.com/zloirock/core-js/#escaping-strings)
  362. * [`core.iter-helpers`](https://github.com/zloirock/core-js/#ecmascript-6-iterators)
  363. * Internal modules (`$`, `$.iter`, etc)
  364. * Many other optimizations
  365. * Final cleaning non-standard features
  366. * Moved `$for` to [separate library](https://github.com/zloirock/forof). This work for syntax - `for-of` loop and comprehensions
  367. * Moved `Date#{format, formatUTC}` to [separate library](https://github.com/zloirock/dtf). Standard way for this - `ECMA-402`
  368. * Removed `Math` methods from `Number.prototype`. Slight sugar for simple `Math` methods calling
  369. * Removed `{Array#, Array, Dict}.turn`
  370. * Removed `core.global`
  371. * Uses `ToNumber` instead of `ToLength` in [`Number Iterator`](https://github.com/zloirock/core-js/#number-iterator), `Array.from(2.5)` will be `[0, 1, 2]` instead of `[0, 1]`
  372. * Fixed [#85](https://github.com/zloirock/core-js/issues/85) - invalid `Promise` unhandled rejection message in nested `setTimeout`
  373. * Fixed [#86](https://github.com/zloirock/core-js/issues/86) - support FF extensions
  374. * Fixed [#89](https://github.com/zloirock/core-js/issues/89) - behavior `Number` constructor in strange case
  375. ##### 0.9.18 - 2015.06.17
  376. * Removed `/` from [`RegExp.escape`](https://github.com/zloirock/core-js/#ecmascript-7-proposals) escaped characters
  377. ##### 0.9.17 - 2015.06.14
  378. * Updated [`RegExp.escape`](https://github.com/zloirock/core-js/#ecmascript-7-proposals) to the [latest proposal](https://github.com/benjamingr/RexExp.escape)
  379. * Fixed conflict with webpack dev server + IE buggy behavior
  380. ##### 0.9.16 - 2015.06.11
  381. * More correct order resolving thenable in [`Promise`](https://github.com/zloirock/core-js/#ecmascript-6-promise) polyfill
  382. * Uses polyfill instead of [buggy V8 `Promise`](https://github.com/zloirock/core-js/issues/78)
  383. ##### 0.9.15 - 2015.06.09
  384. * [Collections](https://github.com/zloirock/core-js/#ecmascript-6-collections) from `library` version return wrapped native instances
  385. * Fixed collections prototype methods in `library` version
  386. * Optimized [`Math.hypot`](https://github.com/zloirock/core-js/#ecmascript-6-math)
  387. ##### 0.9.14 - 2015.06.04
  388. * Updated [`Promise.resolve` behavior](https://esdiscuss.org/topic/fixing-promise-resolve)
  389. * Added fallback for IE11 buggy `Object.getOwnPropertyNames` + iframe
  390. * Some other fixes
  391. ##### 0.9.13 - 2015.05.25
  392. * Added fallback for [`Symbol` polyfill](https://github.com/zloirock/core-js/#ecmascript-6-symbol) for old Android
  393. * Some other fixes
  394. ##### 0.9.12 - 2015.05.24
  395. * Different instances `core-js` should use / recognize the same symbols
  396. * Some fixes
  397. ##### 0.9.11 - 2015.05.18
  398. * Simplified [custom build](https://github.com/zloirock/core-js/#custom-build)
  399. * Added custom build js api
  400. * Added `grunt-cli` to `devDependencies` for `npm run grunt`
  401. * Some fixes
  402. ##### 0.9.10 - 2015.05.16
  403. * Wrapped `Function#toString` for correct work wrapped methods / constructors with methods similar to the [`lodash` `isNative`](https://github.com/lodash/lodash/issues/1197)
  404. * Added proto versions of methods to export object in `default` version for consistency with `library` version
  405. ##### 0.9.9 - 2015.05.14
  406. * Wrapped `Object#propertyIsEnumerable` for [`Symbol` polyfill](https://github.com/zloirock/core-js/#ecmascript-6-symbol)
  407. * [Added proto versions of methods to `library` for ES7 bind syntax](https://github.com/zloirock/core-js/issues/65)
  408. * Some other fixes
  409. ##### 0.9.8 - 2015.05.12
  410. * Fixed [`Math.hypot`](https://github.com/zloirock/core-js/#ecmascript-6-math) with negative arguments
  411. * Added `Object#toString.toString` as fallback for [`lodash` `isNative`](https://github.com/lodash/lodash/issues/1197)
  412. ##### 0.9.7 - 2015.05.07
  413. * Added [support DOM collections](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/slice#Streamlining_cross-browser_behavior) to IE8- `Array#slice`
  414. ##### 0.9.6 - 2015.05.01
  415. * Added [`String#lpad`, `String#rpad`](https://github.com/zloirock/core-js/#ecmascript-7-proposals)
  416. ##### 0.9.5 - 2015.04.30
  417. * Added cap for `Function#@@hasInstance`
  418. * Some fixes and optimizations
  419. ##### 0.9.4 - 2015.04.27
  420. * Fixed `RegExp` constructor
  421. ##### 0.9.3 - 2015.04.26
  422. * Some fixes and optimizations
  423. ##### 0.9.2 - 2015.04.25
  424. * More correct [`Promise`](https://github.com/zloirock/core-js/#ecmascript-6-promise) unhandled rejection tracking and resolving / rejection priority
  425. ##### 0.9.1 - 2015.04.25
  426. * Fixed `__proto__`-based [`Promise`](https://github.com/zloirock/core-js/#ecmascript-6-promise) subclassing in some environments
  427. ##### 0.9.0 - 2015.04.24
  428. * Added correct [symbols](https://github.com/zloirock/core-js/#ecmascript-6-symbol) descriptors
  429. * Fixed behavior `Object.{assign, create, defineProperty, defineProperties, getOwnPropertyDescriptor, getOwnPropertyDescriptors}` with symbols
  430. * Added [single entry points](https://github.com/zloirock/core-js/#commonjs) for `Object.{create, defineProperty, defineProperties}`
  431. * Added [`Map#toJSON`](https://github.com/zloirock/core-js/#ecmascript-7-proposals)
  432. * Removed non-standard methods `Object#[_]` and `Function#only` - they solves syntax problems, but now in compilers available arrows and ~~in near future will be available~~ [available](http://babeljs.io/blog/2015/05/14/function-bind/) [bind syntax](https://github.com/zenparsing/es-function-bind)
  433. * Removed non-standard undocumented methods `Symbol.{pure, set}`
  434. * Some fixes and internal changes
  435. ##### 0.8.4 - 2015.04.18
  436. * Uses `webpack` instead of `browserify` for browser builds - more compression-friendly result
  437. ##### 0.8.3 - 2015.04.14
  438. * Fixed `Array` statics with single entry points
  439. ##### 0.8.2 - 2015.04.13
  440. * [`Math.fround`](https://github.com/zloirock/core-js/#ecmascript-6-math) now also works in IE9-
  441. * Added [`Set#toJSON`](https://github.com/zloirock/core-js/#ecmascript-7-proposals)
  442. * Some optimizations and fixes
  443. ##### 0.8.1 - 2015.04.03
  444. * Fixed `Symbol.keyFor`
  445. ##### 0.8.0 - 2015.04.02
  446. * Changed [CommonJS API](https://github.com/zloirock/core-js/#commonjs)
  447. * Splitted and renamed some modules
  448. * Added support ES3 environment (ES5 polyfill) to **all** default versions - size increases slightly (+ ~4kb w/o gzip), many issues disappear, if you don't need it - [simply include only required namespaces / features / modules](https://github.com/zloirock/core-js/#commonjs)
  449. * Removed [abstract references](https://github.com/zenparsing/es-abstract-refs) support - proposal has been superseded =\
  450. * [`$for.isIterable` -> `core.isIterable`, `$for.getIterator` -> `core.getIterator`](https://github.com/zloirock/core-js/#ecmascript-6-iterators), temporary available in old namespace
  451. * Fixed iterators support in v8 `Promise.all` and `Promise.race`
  452. * Many other fixes
  453. ##### 0.7.2 - 2015.03.09
  454. * Some fixes
  455. ##### 0.7.1 - 2015.03.07
  456. * Some fixes
  457. ##### 0.7.0 - 2015.03.06
  458. * Rewritten and splitted into [CommonJS modules](https://github.com/zloirock/core-js/#commonjs)
  459. ##### 0.6.1 - 2015.02.24
  460. * Fixed support [`Object.defineProperty`](https://github.com/zloirock/core-js/#ecmascript-5) with accessors on DOM elements on IE8
  461. ##### 0.6.0 - 2015.02.23
  462. * Added support safe closing iteration - calling `iterator.return` on abort iteration, if it exists
  463. * Added basic support [`Promise`](https://github.com/zloirock/core-js/#ecmascript-6-promise) unhandled rejection tracking in shim
  464. * Added [`Object.getOwnPropertyDescriptors`](https://github.com/zloirock/core-js/#ecmascript-7-proposals)
  465. * Removed `console` cap - creates too many problems
  466. * Restructuring [namespaces](https://github.com/zloirock/core-js/#custom-build)
  467. * Some fixes
  468. ##### 0.5.4 - 2015.02.15
  469. * Some fixes
  470. ##### 0.5.3 - 2015.02.14
  471. * Added [support binary and octal literals](https://github.com/zloirock/core-js/#ecmascript-6-number) to `Number` constructor
  472. * Added [`Date#toISOString`](https://github.com/zloirock/core-js/#ecmascript-5)
  473. ##### 0.5.2 - 2015.02.10
  474. * Some fixes
  475. ##### 0.5.1 - 2015.02.09
  476. * Some fixes
  477. ##### 0.5.0 - 2015.02.08
  478. * Systematization of modules
  479. * Splitted [`es6` module](https://github.com/zloirock/core-js/#ecmascript-6)
  480. * Splitted `console` module: `web.console` - only cap for missing methods, `core.log` - bound methods & additional features
  481. * Added [`delay` method](https://github.com/zloirock/core-js/#delay)
  482. * Some fixes
  483. ##### 0.4.10 - 2015.01.28
  484. * [`Object.getOwnPropertySymbols`](https://github.com/zloirock/core-js/#ecmascript-6-symbol) polyfill returns array of wrapped keys
  485. ##### 0.4.9 - 2015.01.27
  486. * FF20-24 fix
  487. ##### 0.4.8 - 2015.01.25
  488. * Some [collections](https://github.com/zloirock/core-js/#ecmascript-6-collections) fixes
  489. ##### 0.4.7 - 2015.01.25
  490. * Added support frozen objects as [collections](https://github.com/zloirock/core-js/#ecmascript-6-collections) keys
  491. ##### 0.4.6 - 2015.01.21
  492. * Added [`Object.getOwnPropertySymbols`](https://github.com/zloirock/core-js/#ecmascript-6-symbol)
  493. * Added [`NodeList.prototype[@@iterator]`](https://github.com/zloirock/core-js/#ecmascript-6-iterators)
  494. * Added basic `@@species` logic - getter in native constructors
  495. * Removed `Function#by`
  496. * Some fixes
  497. ##### 0.4.5 - 2015.01.16
  498. * Some fixes
  499. ##### 0.4.4 - 2015.01.11
  500. * Enabled CSP support
  501. ##### 0.4.3 - 2015.01.10
  502. * Added `Function` instances `name` property for IE9+
  503. ##### 0.4.2 - 2015.01.10
  504. * `Object` static methods accept primitives
  505. * `RegExp` constructor can alter flags (IE9+)
  506. * Added `Array.prototype[Symbol.unscopables]`
  507. ##### 0.4.1 - 2015.01.05
  508. * Some fixes
  509. ##### 0.4.0 - 2015.01.03
  510. * Added [`es6.reflect`](https://github.com/zloirock/core-js/#ecmascript-6-reflect) module:
  511. * Added `Reflect.apply`
  512. * Added `Reflect.construct`
  513. * Added `Reflect.defineProperty`
  514. * Added `Reflect.deleteProperty`
  515. * Added `Reflect.enumerate`
  516. * Added `Reflect.get`
  517. * Added `Reflect.getOwnPropertyDescriptor`
  518. * Added `Reflect.getPrototypeOf`
  519. * Added `Reflect.has`
  520. * Added `Reflect.isExtensible`
  521. * Added `Reflect.preventExtensions`
  522. * Added `Reflect.set`
  523. * Added `Reflect.setPrototypeOf`
  524. * `core-js` methods now can use external `Symbol.iterator` polyfill
  525. * Some fixes
  526. ##### 0.3.3 - 2014.12.28
  527. * [Console cap](https://github.com/zloirock/core-js/#console) excluded from node.js default builds
  528. ##### 0.3.2 - 2014.12.25
  529. * Added cap for [ES5](https://github.com/zloirock/core-js/#ecmascript-5) freeze-family methods
  530. * Fixed `console` bug
  531. ##### 0.3.1 - 2014.12.23
  532. * Some fixes
  533. ##### 0.3.0 - 2014.12.23
  534. * Optimize [`Map` & `Set`](https://github.com/zloirock/core-js/#ecmascript-6-collections):
  535. * Use entries chain on hash table
  536. * Fast & correct iteration
  537. * Iterators moved to [`es6`](https://github.com/zloirock/core-js/#ecmascript-6) and [`es6.collections`](https://github.com/zloirock/core-js/#ecmascript-6-collections) modules
  538. ##### 0.2.5 - 2014.12.20
  539. * `console` no longer shortcut for `console.log` (compatibility problems)
  540. * Some fixes
  541. ##### 0.2.4 - 2014.12.17
  542. * Better compliance of ES6
  543. * Added [`Math.fround`](https://github.com/zloirock/core-js/#ecmascript-6-math) (IE10+)
  544. * Some fixes
  545. ##### 0.2.3 - 2014.12.15
  546. * [Symbols](https://github.com/zloirock/core-js/#ecmascript-6-symbol):
  547. * Added option to disable addition setter to `Object.prototype` for Symbol polyfill:
  548. * Added `Symbol.useSimple`
  549. * Added `Symbol.useSetter`
  550. * Added cap for well-known Symbols:
  551. * Added `Symbol.hasInstance`
  552. * Added `Symbol.isConcatSpreadable`
  553. * Added `Symbol.match`
  554. * Added `Symbol.replace`
  555. * Added `Symbol.search`
  556. * Added `Symbol.species`
  557. * Added `Symbol.split`
  558. * Added `Symbol.toPrimitive`
  559. * Added `Symbol.unscopables`
  560. ##### 0.2.2 - 2014.12.13
  561. * Added [`RegExp#flags`](https://github.com/zloirock/core-js/#ecmascript-6-regexp) ([December 2014 Draft Rev 29](http://wiki.ecmascript.org/doku.php?id=harmony:specification_drafts#december_6_2014_draft_rev_29))
  562. * Added [`String.raw`](https://github.com/zloirock/core-js/#ecmascript-6-string)
  563. ##### 0.2.1 - 2014.12.12
  564. * Repair converting -0 to +0 in [native collections](https://github.com/zloirock/core-js/#ecmascript-6-collections)
  565. ##### 0.2.0 - 2014.12.06
  566. * Added [`es7.proposals`](https://github.com/zloirock/core-js/#ecmascript-7-proposals) and [`es7.abstract-refs`](https://github.com/zenparsing/es-abstract-refs) modules
  567. * Added [`String#at`](https://github.com/zloirock/core-js/#ecmascript-7-proposals)
  568. * Added real [`String Iterator`](https://github.com/zloirock/core-js/#ecmascript-6-iterators), older versions used Array Iterator
  569. * Added abstract references support:
  570. * Added `Symbol.referenceGet`
  571. * Added `Symbol.referenceSet`
  572. * Added `Symbol.referenceDelete`
  573. * Added `Function#@@referenceGet`
  574. * Added `Map#@@referenceGet`
  575. * Added `Map#@@referenceSet`
  576. * Added `Map#@@referenceDelete`
  577. * Added `WeakMap#@@referenceGet`
  578. * Added `WeakMap#@@referenceSet`
  579. * Added `WeakMap#@@referenceDelete`
  580. * Added `Dict.{...methods}[@@referenceGet]`
  581. * Removed deprecated `.contains` methods
  582. * Some fixes
  583. ##### 0.1.5 - 2014.12.01
  584. * Added [`Array#copyWithin`](https://github.com/zloirock/core-js/#ecmascript-6-array)
  585. * Added [`String#codePointAt`](https://github.com/zloirock/core-js/#ecmascript-6-string)
  586. * Added [`String.fromCodePoint`](https://github.com/zloirock/core-js/#ecmascript-6-string)
  587. ##### 0.1.4 - 2014.11.27
  588. * Added [`Dict.mapPairs`](https://github.com/zloirock/core-js/#dict)
  589. ##### 0.1.3 - 2014.11.20
  590. * [TC39 November meeting](https://github.com/rwaldron/tc39-notes/tree/master/es6/2014-11):
  591. * [`.contains` -> `.includes`](https://github.com/rwaldron/tc39-notes/blob/master/es6/2014-11/nov-18.md#51--44-arrayprototypecontains-and-stringprototypecontains)
  592. * `String#contains` -> [`String#includes`](https://github.com/zloirock/core-js/#ecmascript-6-string)
  593. * `Array#contains` -> [`Array#includes`](https://github.com/zloirock/core-js/#ecmascript-7-proposals)
  594. * `Dict.contains` -> [`Dict.includes`](https://github.com/zloirock/core-js/#dict)
  595. * [Removed `WeakMap#clear`](https://github.com/rwaldron/tc39-notes/blob/master/es6/2014-11/nov-19.md#412-should-weakmapweakset-have-a-clear-method-markm)
  596. * [Removed `WeakSet#clear`](https://github.com/rwaldron/tc39-notes/blob/master/es6/2014-11/nov-19.md#412-should-weakmapweakset-have-a-clear-method-markm)
  597. ##### 0.1.2 - 2014.11.19
  598. * `Map` & `Set` bug fix
  599. ##### 0.1.1 - 2014.11.18
  600. * Public release