Promise.allSettled moved to stable ES, per July TC39 meeting
Promise.any moved to stage 2, .errors property of AggregateError instances made non-enumerable, per July TC39 meeting
using statement proposal moved to stage 2, added Symbol.asyncDispose, per July TC39 meeting
Added Array.isTemplateObject stage 2 proposal, per June TC39 meeting
Added Map#updateOrInsert stage 1 proposal, per July TC39 meeting
Added a fix for Math.hypot V8 7.7 bug, since it's still not stable without adding results to core-js-compat
Added a workaround for APIs where not possible to replace broken native Promise, #579 - added .finally and patched .then to / on native Promise prototype
Fixed crashing of Opera Presto, #595
Fixed incorrect early breaking of { Map, Set, WeakMap, WeakSet }.deleteAll
Fixed some missed dependencies in entry points
Added compat data for Node 12.5, FF 67, Safari 13
Added support of DISABLE_OPENCOLLECTIVE env variable to postinstall script
Removed core-js-pure dependency from core-js-compat, #590
Fixed generation of core-js-compat on Windows, #606

3.1.4

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zloirock

published 3.1.4 • 5 years ago

Changelog

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3.1.4 - 2019.06.15

Refactoring. Many minor internal improvements and fixes like:
- Improved Symbol.keyFor complexity to O(1)
- Fixed the order of arguments validation in String.prototype.{ endsWith, includes, startsWith }
- Internal implementation of RegExp#flags helper now respect dotAll flag (mainly related to the pure version)
- Performance optimizations related old V8
- Etc.

3.1.3

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zloirock

published 3.1.3 • 5 years ago

Changelog

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3.1.3 - 2019.05.27

Fixed core-js/features/reflect/delete-metadata entry point
Some fixes and improvements of the postinstall script like support npm color config (#556) or adding support of ADBLOCK env variable
Refactoring and some minor fixes

3.1.2

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zloirock

published 3.1.2 • 5 years ago

Changelog

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3.1.2 - 2019.05.22

Added a workaround of a strange npx bug on postinstall, #551

3.1.1

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zloirock

published 3.1.1 • 5 years ago

Changelog

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3.1.1 - 2019.05.21

Added one more workaround of alternative not completely correct Symbol polyfills, #550, #554
Reverted esnext.string.match-all in some entry points for fix autogeneration of core-js-compat/entries and backward @babel/preset-env compatibility

3.1.0

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zloirock

published 3.1.0 • 5 years ago

Changelog

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3.1.0 - 2019.05.20

String#matchAll moved to stable ES, exposed Symbol.matchAll, #516
Promise.allSettled moved to stage 3, #515
String#replaceAll moved to stage 2, behavior updated by the spec draft, #524
Promise.any moved to stage 1, #517
Removed es.regexp.flags dependency from es.regexp.to-string, #536, #537
Fixed IE8- non-enumerable properties support in Object.{ assign, entries, values }, #541
Fixed support of primitives in Object.getOwnPropertySymbols in Chrome 38 / 39, #539
window.postMessage-based task implementation uses location origin over '*', #542
Lookup PromiseConstructor.resolve only once in Promise combinators, tc39/ecma262#1506
Temporarily removed core-js dependency from core-js-compat since it's required for missed at this moment feature
Show a message on postinstall
Added compat data for Chrome 76, FF 67, Node 12

3.0.1

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zloirock

published 3.0.1 • 6 years ago

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3.0.1 - 2019.04.06

Fixed some cases of work with malformed URI sequences in URLSearchParams, #525
Added a workaround for a rollup issue, #513

3.0.0

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zloirock

published 3.0.0 • 6 years ago

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3.0.0 - 2019.03.19

Features
- Add new features:
  - Object.fromEntries (ECMAScript 2019)
  - Symbol#description (ECMAScript 2019)
  - New Set methods (stage 2 proposal)
    - Set#difference
    - Set#intersection
    - Set#isDisjointFrom
    - Set#isSubsetOf
    - Set#isSupersetOf
    - Set#symmetricDifference
    - Set#union
  - Promise.allSettled (stage 2 proposal)
  - Getting last item from Array (stage 1 proposal)
    - Array#lastItem
    - Array#lastIndex
  - String#replaceAll (stage 1 proposal)
  - String#codePoints (stage 1 proposal)
  - New collections methods (stage 1 proposal)
    - Map.groupBy
    - Map.keyBy
    - Map#deleteAll
    - Map#every
    - Map#filter
    - Map#find
    - Map#findKey
    - Map#includes
    - Map#keyOf
    - Map#mapKeys
    - Map#mapValues
    - Map#merge
    - Map#reduce
    - Map#some
    - Map#update
    - Set#addAll
    - Set#deleteAll
    - Set#every
    - Set#filter
    - Set#find
    - Set#join
    - Set#map
    - Set#reduce
    - Set#some
    - WeakMap#deleteAll
    - WeakSet#addAll
    - WeakSet#deleteAll
  - compositeKey and compositeSymbol methods (stage 1 proposal)
  - Number.fromString (stage 1 proposal)
  - Math.seededPRNG (stage 1 proposal)
  - Symbol.patternMatch (for stage 1 pattern matching proposal)
  - Symbol.dispose (for stage 1 using statement proposal)
  - Promise.any (with AggregateError) (stage 0 proposal)
  - URL and URLSearchParam from URL standard, also stage 0 proposal to ECMAScript
    - URL
      - URL#href
      - URL#origin
      - URL#protocol
      - URL#username
      - URL#password
      - URL#host
      - URL#hostname
      - URL#port
      - URL#pathname
      - URL#search
      - URL#searchParams
      - URL#hash
      - URL#toString
      - URL#toJSON
    - URLSearchParams
      - URLSearchParams#append
      - URLSearchParams#delete
      - URLSearchParams#get
      - URLSearchParams#getAll
      - URLSearchParams#has
      - URLSearchParams#set
      - URLSearchParams#sort
      - URLSearchParams#toString
      - URLSearchParams#keys
      - URLSearchParams#values
      - URLSearchParams#entries
      - URLSearchParams#@@iterator
  - .forEach method on iterable DOM collections (#329)
- Improve existing features:
  - Add triggering unhandled Promise rejection events (instead of only global handlers), #205.
  - Wrap fetch for correct with polyfilled Promise and preventing problems like #178, #332, #371.
  - Add support of @@isConcatSpreadable to Array#concat.
  - Add support of @@species to Array#{concat, filter, map, slice, splice}.
  - Add direct .exec calling to RegExp#{@@replace, @@split, @@match, @@search}. Also, added fixes for RegExp#exec method. #411, #434, #453, thanks @nicolo-ribaudo.
  - Correct iterators prototypes chain, related #261.
  - Correct Typed Arrays prototypes chain, related #378.
  - Make the internal state of polyfilled features completely unobservable, #146.
  - Add validation of receiver's internal class to missed non-generic methods.
  - Fix descriptors of global properties.
  - In the version without global pollution, if Object#toString does not support @@toStringTag, add to wrapped prototypes own toString method with @@toStringTag logic, see #199.
- Update standard features and proposals:
  - asap (old stage 0 proposal) replaced by queueMicrotask (a part of HTML spec)
  - Update Observable (#257, #276, etc.)
  - Update Array#flatten -> Array#flat and Array#flatMap
  - Update global stage 3 proposal - rename global to globalThis
  - Update String#matchAll (proposal-string-matchall#17, proposal-string-matchall#38, proposal-string-matchall#41, etc.) and move to the stage 3
  - Update .name properties of String#{trimStart, trimEnd , trimLeft, trimRight}, move to the stage 3
  - Remove mongolian vowel separator (U+180E) from the list of whitespaces for methods like String#trim (ES6 -> ES7)
- Mark ES2016, ES2017, ES2018, ES2019 features as stable:
  - Array#{ flat, flatMap }
  - { Array, %TypedArray% }#includes
  - Object.{ values, entries}
  - Object.getOwnPropertyDescriptors
  - String#{ padStart, padEnd }
  - String#{ trimStart, trimEnd, trimLeft, trimRight }
  - Promise#finally
  - Symbol.asyncIterator
  - Object#__(define|lookup)[GS]etter__
- Remove obsolete features:
  - Error.isError (withdrawn)
  - System.global and global (replaced by globalThis)
  - Map#toJSON and Set#toJSON (rejected)
  - RegExp.escape (rejected)
  - Reflect.enumerate (removed from the spec)
  - Unnecessary iteration methods from CSSRuleList, MediaList, StyleSheetList
- No more non-standard features, finally removed:
  - Dict
  - Object.{classof, isObject, define, make}
  - Function#part
  - Number#@@iterator
  - String#{escapeHTML, unescapeHTML}
  - delay
- Add .sham flag to features which can't be properly polyfilled and / or not recommended for usage:
  - Symbol constructor - we can't add new primitives. Object.prototype accessors too expensive.
  - Object.{create, defineProperty, defineProperties, getOwnPropertyDescriptor, getOwnPropertyDescriptors}, Reflect.{defineProperty, getOwnPropertyDescriptor} can't be properly polyfilled without descriptors support.
  - Object.{freeze, seal, preventExtensions}, Reflect.preventExtensions can't be properly polyfilled in ES3 environment.
  - Object.getPrototypeOf can be deceived in ES3 environment.
  - Reflect.construct can't be polyfilled for a correct work with newTarget argument on built-ins.
  - Typed Array constructors polyfill is quite correct but too expensive.
  - URL constructor in engines without descriptors support.
Bug and compatibility fixes:
- Fix deoptimisation of iterators in V8, #377.
- Fix import of property before constructor which should contain this property, #262.
- Fix some cases of IE11 WeakMap frozen keys fallback, #384.
- Fix non-enumerable integer keys issue because of Nashorn ~ JDK8 bug, #389.
- Fix Safari 12.0 Array#reverse bug.
- One more fix for microtasks in iOS related #339.
- Added a fallback for Rhino bug, #440.
- Many other internal fixes and improvements.
Repository:
- Change core-js repository structure to monorepo with packages in /packages/ directory.
- Clean-up it, remove all possible duplicates, generated files, etc.
Packages:
- Extract a version without global namespace pollution to a separate core-js-pure package (replacement for core-js/library).
- Leave only one pair of bundles (global, with all polyfills) and move it to core-js-bundle package.
- Remove bundling logic from core-js package, leave it only in core-js-builder package.
- Clean-up packages.
- Because of all approaches, reduce size of packages from ~2mb for core-js@2 to:
  - ~500kb for core-js package
  - ~440kb for core-js-pure package
- Finally remove bower.json
CommonJS API, namespaces:
- Add availability configuration of aggressiveness.
- Move core-js/library to separate core-js-pure package.
- Because of removing all non-standard features, we no longer need core-js/shim entry point, replace it just with core-js.
- Move all features from ES5, ES2015, ES2016, ES2017, ES2018 and ES2019 to one namespace for stable ES - it's available as core-js/es, all those features in modules folder has es. prefix.
- Change prefix for ES proposals from es7. to esnext., they no longer available in core-js/es7, use core-js/stage/* instead of that.
- Rename core-js(/library)/fn to core-js(-pure)/features for improve readability.
- Allow more granular inclusion of features from /es/ path (for example, core-js/es/array/from).
- Add /stable/ entry points as an equal of /features/ for stable features, without proposals.
- Add /proposals/ entry points for allow include all features from one proposal (for example, core-js/proposals/reflect-metadata).
- Add /es|stable|features/instance/ entry points for getting polyfill of the related method for passed instance (could be used in cases like babel-runtime).
- Split typed arrays polyfills. Now you can, for example, load only required method (for example, core-js/es/typed-array/from).
- Extract well-known symbols definition from es.symbol module for loading only required features, for example, in MS Edge.
- Rename web.dom namespace to web.dom-collections.
- Rename es6.regexp.{match, replace, search, split} -> es.string.{match, replace, search, split} - mainly it's fixes / adding support of well-known symbols to string methods, only in second place adding related methods to regexp prototype.
- Relax /modules/ directory by moving internal modules to /internals/ directory.
- Remove deprecated array entry points: core-js(/library)/fn/array/{pop, push, reverse, shift, unshift}.
- core object no longer available in the global version, entry points which previously returned it now returns globalThis object. Also, don't set global core property.
- Add some missing entry points.
Tools, tests, code quality:
- Added core-js-compat package with:
  - Data about the necessity of core-js modules and API for getting a list of required core-js modules by browserslist query, #466.
  - Data which modules load by each entry point (mainly useful for tools like @babel/preset-env).
  - Data which modules added in minor versions (mainly useful for tools like @babel/preset-env).
- core-js-builder package:
  - Added targets option with browserslist query.
  - Removed an option for generation bundle of a version without global namespace pollution - now it's an odd use case.
  - Removed UMD wrapper from a generated code of bundles - we don't need it for a global polyfill.
- Getting rid of LiveScript, usage another language in JS standard library looks strange and impedes usage of tools like ESLint:
  - Tests are rewritten to JS.
  - Scripts are rewritten to JS.
- Babel with minimalistic config (which should work anywhere) used on tests.
- ESLint used on tests and tools.
- Source code refactored for improving readability.

3.0.0-beta.20

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zloirock

published 3.0.0-beta.20 • 6 years ago

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