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This MR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
core-js	^3.8.0 -> 3.18.1

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Release Notes

zloirock/core-js

v3.18.1

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• Fixed String.prototype.substr feature detection and compat data
• Removed mistakenly added .forEach from prototypes of some DOM collections where it shouldn't be, #​988, #​987, thanks @​moorejs
• Added cause to AggregateError constructor implementation (still without adding to the feature detection)
• Families of .at and .findLast methods marked as supported in Safari TP
• Added Electron 16.0 compat data mapping

v3.18.0

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• Added Array.fromAsync stage 1 proposal:
  • Array.fromAsync
  • %TypedArray%.fromAsync
• .name and .toString() on polyfilled functions improved in many different cases
• Improved internal IsConstructor and IsCallable checks
• Fixed some internal cases of GetMethod operation
• Fixed a bug of MS Edge 18- parseInt / parseFloat with boxed symbols
• Fixed es.array.{ index-of, last-index-of } compat data
• Added Deno 1.15 compat data mapping
• Some other minor fixes and optimizations

v3.17.3

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• Fixed some possible problems related to possible extension of %IteratorPrototype% and %AsyncIteratorPrototype% in the future
• Fixed DOMTokenList.prototype.{ forEach, @​@​iterator, keys, values, entries } in old WebKit versions where element.classList is not an instance of global DOMTokenList
• Added NodeJS 16.9 compat data mapping
• Added Samsung Internet 16.0 compat data mapping

v3.17.2

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• Fixed missed cases of ES3 reserved words usage, related to #​980
• Fixed dependencies in one missed entry point
• Some other minor fixes and optimizations

v3.17.1

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• Fixed missed modules-by-versions data

v3.17.0

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• Accessible Object.prototype.hasOwnProperty (Object.hasOwn) proposal moved to the stable ES, per August 2021 TC39 meeting
• Relative indexing method (.at) proposal moved to the stable ES, per August 2021 TC39 meeting
• Exposed by default the stable version of String.prototype.at. It was not exposed because of the conflict with the alternative obsolete proposal (that will be completely removed in the next major version). For the backward compatibility, in the case of loading this proposal, it will be overwritten.
• Some more iteration closing fixes
• Fixed an ES3 reserved words usage, #​980

v3.16.4

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• AsyncFromSyncIterator made stricter, related mainly to AsyncIterator.from and AsyncIterator.prototype.flatMap
• Handling of optional .next arguments in (Async)Iterator methods is aligned with the current spec draft (mainly - ignoring the first passed to .next argument in built-in generators)
• Behavior of .next, .return, .throw methods on AsyncIterator helpers proxy iterators aligned with the current spec draft (built-in async generators) (mainly - some early errors moved to returned promises)
• Fixed some cases of safe iteration closing
• Fixed dependencies of some entry points

v3.16.3

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• Fixed CreateAsyncFromSyncIterator semantic in AsyncIterator.from, related to #​765
• Added a workaround of a specific case of broken Object.prototype, #​973

v3.16.2

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• Added a workaround of a Closure Compiler unsafe optimization, #​972
• One more fix crashing of Object.create(null) on WSH, #​970
• Added Deno 1.14 compat data mapping

v3.16.1

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• Fixed microtask implementation on iOS Pebble, #​967
• Fixed some entry points
• Improved old Safari compat data

v3.16.0

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• Array find from last proposal moved to the stage 3, July 2021 TC39 meeting
• Array filtering stage 1 proposal:
  • Array.prototype.filterReject replaces Array.prototype.filterOut
  • %TypedArray%.prototype.filterReject replaces %TypedArray%.prototype.filterOut
• Added Array grouping stage 1 proposal:
  • Array.prototype.groupBy
  • %TypedArray%.prototype.groupBy
• Work with symbols made stricter: some missed before cases of methods that should throw an error on symbols now works as they should
• Handling @@​toPrimitive in some cases of ToPrimitive internal logic made stricter
• Fixed work of Request with polyfilled URLSearchParams, #​965
• Fixed possible exposing of collections elements metadata in some cases, #​427
• Fixed crashing of Object.create(null) on WSH, #​966
• Fixed some cases of typed arrays subclassing logic
• Fixed a minor bug related to string conversion in RegExp#exec
• Fixed Date.prototype.getYear feature detection
• Fixed content of some entry points
• Some minor optimizations and refactoring
• Deno:
  • Added Deno support (sure, after bundling since Deno does not support CommonJS)
  • Allowed deno target in core-js-compat / core-js-builder
  • A bundle for Deno published on deno.land/x/corejs
• Added / updated compat data / mapping:
  • Deno 1.0-1.13
  • NodeJS up to 16.6
  • iOS Safari up to 15.0
  • Samsung Internet up to 15.0
  • Opera Android up to 64
  • Object.hasOwn marked as supported from V8 9.3 and FF92
  • Date.prototype.getYear marked as not supported in IE8-
• Added summary option to core-js-builder, see more info in the README, #​910

v3.15.2

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• Worked around breakage related to zone.js loaded before core-js, #​953
• Added NodeJS 16.4 -> Chrome 91 compat data mapping

v3.15.1

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• Fixed cloning of regex through RegExp constructor, #​948

v3.15.0

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• Added RegExp named capture groups polyfill, #​521, #​944
• Added RegExp dotAll flag polyfill, #​792, #​944
• Added missed polyfills of Annex B features (required mainly for some non-browser engines), #​336, #​945:
  • escape
  • unescape
  • String.prototype.substr
  • Date.prototype.getYear
  • Date.prototype.setYear
  • Date.prototype.toGMTString
• Fixed detection of forbidden host code points in URL polyfill
• Allowed rhino target in core-js-compat / core-js-builder, added compat data for rhino 1.7.13, #​942, thanks @​gausie
• .at marked as supported from FF90

v3.14.0

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• Added polyfill of stable sort in { Array, %TypedArray% }.prototype.sort, #​769, #​941
• Fixed Safari 14.0- %TypedArray%.prototype.sort validation of arguments bug
• .at marked as supported from V8 9.2

v3.13.1

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• Overwrites get-own-property-symbols third-party Symbol polyfill if it's used since it causes a stack overflow, #​774
• Added a workaround of possible browser crash on Object.prototype accessors methods in WebKit ~ Android 4.0, #​232

v3.13.0

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• Accessible Object#hasOwnProperty (Object.hasOwn) proposal moved to the stage 3, May 2021 TC39 meeting

v3.12.1

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• Fixed some cases of Function#toString with multiple core-js instances
• Fixed some possible String#split polyfill problems in V8 5.1

v3.12.0

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• Added well-known symbol Symbol.metadata for decorators stage 2 proposal
• Added well-known symbol Symbol.matcher for pattern matching stage 1 proposal
• Fixed regression of V8 ~ Node 0.12 String(Symbol()) bug, #​933

v3.11.3

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• Native promise-based APIs Promise#{ catch, finally } returns polyfilled Promise instances when it's required

v3.11.2

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• Added a workaround of WebKit ~ iOS 10.3 Safari Promise bug, #​932
• Promise#then of incorrect native Promise implementations with correct subclassing no longer wrapped
• Changed the order of Promise feature detection, removed unhandled rejection tracking check in non-browser non-node platforms

v3.11.1

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• Made instanceof Promise and .constructor === Promise work with polyfilled Promise for all native promise-based APIs
• Added a workaround for some buggy V8 versions ~4.5 related to fixing of %TypedArray% static methods, #​564

v3.11.0

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• Added accessible Object#hasOwnProperty stage 2 proposal
  • Object.hasOwn method
• Fixed a possible RegExp constructor problem with multiple global core-js instances

v3.10.2

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• URL and URLSearchParams marked as supported from Safari 14.0
• Polyfilled built-in constructors protected from calling on instances

v3.10.1

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• Prevented possible RegExp#split problems in old engines, #​751, #​919
• Detection of Safari 10 string padding bug extended to some Safari-based browsers

v3.10.0

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• Array find from last proposal moved to the stage 2, March TC39 meeting
• Prevented possible RegExp#exec problems in some old engines, #​920
• Updated compat data mapping:
  • NodeJS up to 16.0
  • Electron up to 13.0
  • Samsung Internet up to 14.0
  • Opera Android up to 62
  • The rest automatically

v3.9.1

Compare Source

• Added a workaround for Chrome 38-40 bug which does not allow to inherit symbols (incl. well-known) from DOM collections prototypes to instances, #​37
• Used NumericRangeIterator as toStringTag instead of RangeIterator in { Number, BigInt }.range iterator, per this MR
• TypedArray constructors marked as supported from Safari 14.0
• Updated compat data mapping for iOS Safari and Opera for Android

v3.9.0

Compare Source

• Added Array find from last stage 1 proposal
  • Array#findLast
  • Array#findLastIndex
  • %TypedArray%#findLast
  • %TypedArray%#findLastIndex
• Added %TypedArray%#uniqueBy method for array deduplication stage 1 proposal
  • %TypedArray%#uniqueBy
• Dropped ToLength detection from array methods feature detection which could cause hanging FF11-21 and some versions of old WebKit, #​764
• Minified bundle from core-js-bundle uses terser instead of uglify-js

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