Expand JS error serialization by domenic · Pull Request #5749 · whatwg/html (original) (raw)

v3.34.0

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• Array grouping proposal:
  • Methods:
    • Object.groupBy
    • Map.groupBy
  • Moved to stable ES, November 2023 TC39 meeting
  • Added es. namespace modules, /es/ and /stable/ namespaces entries
• Promise.withResolvers proposal:
  • Method:
    • Promise.withResolvers
  • Moved to stable ES, November 2023 TC39 meeting
  • Added es. namespace module, /es/ and /stable/ namespaces entries
• Fixed a web incompatibility issue of Iterator helpers proposal, proposal-iterator-helpers/287 and some following changes, November 2023 TC39 meeting
• Added Uint8Array to / from base64 and hex stage 2 proposal:
  • Methods:
    • Uint8Array.fromBase64
    • Uint8Array.fromHex
    • Uint8Array.prototype.toBase64
    • Uint8Array.prototype.toHex
• Relaxed some specific cases of Number.fromString validation before clarification of proposal-number-fromstring/24
• Fixed @@​toStringTag property descriptors on DOM collections, #​1312
• Fixed the order of arguments validation in Array iteration methods, #​1313
• Some minor atob / btoa improvements
• Compat data improvements:
  • Promise.withResolvers marked as shipped from FF121

v3.33.3

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• Fixed an issue getting the global object on Duktape, #​1303
• Avoid sharing internal [[DedentMap]] from String.dedent proposal between core-js instances before stabilization of the proposal
• Some internal untangling
• Compat data improvements:
  • Added Deno 1.38 compat data mapping
  • Array.fromAsync marked as supported from Deno 1.38
  • Symbol.{ dispose, asyncDispose } marked as supported from Deno 1.38
  • Added Opera Android 79 compat data mapping
  • Added Oculus Quest Browser 30 compat data mapping
  • Updated Electron 28 and 29 compat data mapping

v3.33.2

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• Simplified structuredClone polyfill, avoided second tree pass in cases of transferring
• Added support of SuppressedError to structuredClone polyfill
• Removed unspecified unnecessary ArrayBuffer and DataView dependencies of structuredClone lack of which could cause errors in some entries in IE10-
• Fixed handling of fractional number part in Number.fromString
• Compat data improvements:
  • URL.canParse marked as supported from Chromium 120
  • Updated Opera Android 78 compat data mapping
  • Added Electron 29 compat data mapping

v3.33.1

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• Added one more workaround of possible error with Symbol polyfill on global object, #​1289
• Directly specified type: commonjs in package.json of all packages to avoid potential breakage in future Node versions, see this issue
• Prevented potential issue with lack of some dependencies after automatic optimization polyfills of some methods in the pure version
• Some minor internal fixes and optimizations
• Compat data improvements:
  • String.prototype.{ isWellFormed, toWellFormed } marked as supported from FF119
  • Added React Native 0.73 Hermes compat data, mainly fixes of some issues
  • Added NodeJS 21.0 compat data mapping

v3.33.0

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• Re-introduced RegExp escaping stage 2 proposal, September 2023 TC39 meeting:
  • Added RegExp.escape method with the new set of symbols for escaping
  • Some years ago, it was presented in core-js, but it was removed after rejecting the old version of this proposal
• Added ArrayBuffer.prototype.{ transfer, transferToFixedLength } and support transferring of ArrayBuffers via structuredClone to engines with MessageChannel
• Optimized Math.f16round polyfill
• Fixed some conversion cases of Math.f16round and DataView.prototype.{ getFloat16, setFloat16 }
• Fully forced polyfilling of the TC39 Observable proposal because of incompatibility with the new WHATWG Observable proposal
• Added an extra workaround of errors with exotic environment objects in Symbol polyfill, #​1289
• Some minor fixes and stylistic changes
• Compat data improvements:
  • V8 unshipped Iterator helpers because of some Web compatibility issues
  • Promise.withResolvers marked as supported from V8 ~ Chrome 119
  • Array grouping proposal features marked as supported from FF119
  • value argument of URLSearchParams.prototype.{ has, delete } marked as properly supported from V8 ~ Chrome 118
  • URL.canParse and URLSearchParams.prototype.size marked as supported from Bun 1.0.2
  • Added Deno 1.37 compat data mapping
  • Added Electron 28 compat data mapping
  • Added Opera Android 78 compat data mapping

v3.32.2

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• Fixed structuredClone feature detection core-js@3.32.1 bug, #​1288
• Added a workaround of old WebKit + eval bug, #​1287
• Compat data improvements:
  • Added Samsung Internet 23 compat data mapping
  • Added Quest Browser 29 compat data mapping

v3.32.1

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• Fixed some cases of IEEE754 rounding, #​1279, thanks @​petamoriken
• Prevented injection process polyfill to core-js via some bundlers or esm.sh, #​1277
• Some minor fixes and stylistic changes
• Compat data improvements:
  • Promise.withResolvers marked as supported from Bun 0.7.1
  • Added Opera Android 77 compat data mapping
  • Updated Electron 27 compat data mapping

v3.32.0

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• Array grouping proposal, July 2023 TC39 meeting updates:
  • Moved back to stage 3
  • Added /actual/ namespaces entries, unconditional forced replacement changed to feature detection
• Promise.withResolvers proposal, July 2023 TC39 meeting updates:
  • Moved to stage 3
  • Added /actual/ namespaces entries, unconditional forced replacement changed to feature detection
• Set methods stage 3 proposal, July 2023 TC39 meeting updates:
  • Throw on negative Set sizes, proposal-set-methods/88
  • Removed IsCallable check in GetKeysIterator, proposal-set-methods/101
• Iterator Helpers stage 3 proposal:
  • Avoid creating observable String wrapper objects, July 2023 TC39 meeting update, proposal-iterator-helpers/281
  • Iterator is not constructible from the active function object (works as an abstract class)
• Async explicit resource management:
  • Moved back into the initial proposal -> moved to stage 3, proposal-explicit-resource-management/154
  • Added /actual/ namespace entries, unconditional forced replacement changed to feature detection
  • Ignore return value of [@@​dispose]() method when hint is async-dispose, proposal-explicit-resource-management/180
  • Added ticks for empty resources, proposal-explicit-resource-management/163
• Added some methods from Float16Array stage 3 proposal:
  • There are some reason why I don't want to add Float16Array right now, however, make sense to add some methods from this proposal.
  • Methods:
    • Math.f16round
    • DataView.prototype.getFloat16
    • DataView.prototype.setFloat16
• Added DataView get / set Uint8Clamped methods stage 1 proposal:
  • Methods:
    • DataView.prototype.getUint8Clamped
    • DataView.prototype.setUint8Clamped
• Used strict mode in some missed cases, #​1269
• Fixed a Chromium 117 bug in value argument of URLSearchParams.prototype.{ has, delete }
• Fixed early WebKit ~ Safari 17.0 beta Set methods implementation by the actual spec
• Fixed incorrect Symbol.{ dispose, asyncDispose } descriptors from NodeJS 20.4 / transpilers helpers / userland code
• Fixed forced polyfilling of some iterator helpers that should return wrapped iterator in the pure version
• Fixed and exposed AsyncIteratorPrototype core-js/configurator option, #​1268
• Compat data improvements:
  • Sync Iterator helpers proposal features marked as supported from V8 ~ Chrome 117
  • Array grouping proposal features marked as supported from V8 ~ Chrome 117
  • Mark Symbol.{ dispose, asyncDispose } as supported from NodeJS 20.5.0 (as mentioned above, NodeJS 20.4.0 add it, but with incorrect descriptors)
  • Added Electron 27 compat data mapping

v3.31.1

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• Fixed a structuredClone bug with cloning views of transferred buffers, #​1265
• Fixed the order of arguments validation in DataView methods
• Allowed cloning of Float16Array in structuredClone
• Compat data improvements:
  • Set methods proposal marked as supported from Safari 17.0
  • New URL features: URL.canParse, URLSearchParams.prototype.size and value argument of URLSearchParams.prototype.{ has, delete } marked as supported from Safari 17.0
  • value argument of URLSearchParams.prototype.{ has, delete } marked as supported from Deno 1.35
  • AggregateError and well-formed JSON.stringify marked as supported React Native 0.72 Hermes
  • Added Deno 1.35 compat data mapping
  • Added Quest Browser 28 compat data mapping
  • Added missing NodeJS 12.16-12.22 compat data mapping
  • Updated Opera Android 76 compat data mapping

v3.31.0

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• Well-formed unicode strings proposal:
  • Methods:
    • String.prototype.isWellFormed method
    • String.prototype.toWellFormed method
  • Moved to stable ES, May 2023 TC39 meeting
  • Added es. namespace modules, /es/ and /stable/ namespaces entries
• Array grouping proposal, May 2023 TC39 meeting updates:
  • Because of the web compat issue, moved from prototype to static methods. Added:
    • Object.groupBy method
    • Map.groupBy method (with the actual semantic - with a minor difference it was present in the collections methods stage 1 proposal)
  • Demoted to stage 2
• Decorator Metadata proposal, May 2023 TC39 meeting updates:
  • Moved to stage 3
  • Added Function.prototype[Symbol.metadata] (=== null)
  • Added /actual/ entries
• Iterator Helpers stage 3 proposal:
  • Changed Symbol.iterator fallback from callable check to undefined / null check, May 2023 TC39 meeting, proposal-iterator-helpers/272
  • Removed IsCallable check on NextMethod, deferring errors to Call site, May 2023 TC39 meeting, proposal-iterator-helpers/274
• Added Promise.withResolvers stage 2 proposal:
  • Promise.withResolvers method
• Symbol predicates stage 2 proposal:
  • The methods renamed to end with Symbol, May 2023 TC39 meeting:
    • Symbol.isRegistered -> Symbol.isRegisteredSymbol method
    • Symbol.isWellKnown -> Symbol.isWellKnownSymbol method
• Added value argument of URLSearchParams.prototype.{ has, delete }, url/735
• Fixed some cases of increasing buffer size in ArrayBuffer.prototype.{ transfer, transferToFixedLength } polyfills
• Fixed awaiting async AsyncDisposableStack.prototype.adopt callback, #​1258
• Fixed URLSearchParams#size in ES3 engines (IE8-)
• Added a workaround in Object.{ entries, values } for some IE versions bug with invisible integer keys on null-prototype objects
• Added TypeScript definitions to core-js-compat, #​1235, thanks @​susnux
• Compat data improvements:
  • Set.prototype.difference that was missed in Bun because of a bug added in 0.6.0
  • Array.prototype.{ group, groupToMap } marked as no longer supported in WebKit runtimes because of the mentioned above web compat issue. For example, it's disabled from Bun 0.6.2
  • Methods from the change Array by copy proposal marked as supported from FF115
  • Array.fromAsync marked as supported from FF115
  • URL.canParse marked as supported from FF115
  • value argument of URLSearchParams.prototype.{ has, delete } marked as supported from NodeJS 20.2.0 and FF115
  • Added Deno 1.34 compat data mapping
  • Added Electron 26 compat data mapping
  • Added Samsung Internet 22 compat data mapping
  • Added Opera Android 75 and 76 compat data mapping
  • Added Quest Browser 27 compat data mapping

v3.30.2

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• Added a fix for a NodeJS 20.0.0 bug with cloning File via structuredClone
• Added protection from Terser unsafe String optimization, #​1242
• Added a workaround for getting proper global object in Figma plugins, #​1231
• Compat data improvements:
  • Added NodeJS 20.0 compat data mapping
  • Added Deno 1.33 compat data mapping
  • URL.canParse marked as supported (fixed) from NodeJS 20.1.0 and Deno 1.33.2

v3.30.1

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• Added a fix for a NodeJS 19.9.0 URL.canParse bug
• Compat data improvements:
  • JSON.parse source text access proposal features marked as supported from V8 ~ Chrome 114
  • ArrayBuffer.prototype.transfer and friends proposal features marked as supported from V8 ~ Chrome 114
  • URLSearchParams.prototype.size marked as supported from V8 ~ Chrome 113

v3.30.0

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• Added URL.canParse method, url/763
• Set methods proposal:
  • Removed sort from Set.prototype.intersection, March 2023 TC39 meeting, proposal-set-methods/94
• Iterator Helpers proposals (sync, async):
  • Validate arguments before opening iterator, March 2023 TC39 meeting, proposal-iterator-helpers/265
• Explicit Resource Management proposals (sync, async):
  • (Async)DisposableStack.prototype.move marks the original stack as disposed, #​1226
  • Some simplifications like proposal-explicit-resource-management/150
• Iterator.range proposal:
  • Moved to Stage 2, March 2023 TC39 meeting
• Decorator Metadata proposal:
  • Returned to usage Symbol.metadata, March 2023 TC39 meeting, proposal-decorator-metadata/12
• Compat data improvements:
  • URLSearchParams.prototype.size marked as supported from FF112, NodeJS 19.8 and Deno 1.32
  • Added Safari 16.4 compat data
  • Added Deno 1.32 compat data mapping
  • Added Electron 25 and updated 24 compat data mapping
  • Added Samsung Internet 21 compat data mapping
  • Added Quest Browser 26 compat data mapping
  • Updated Opera Android 74 compat data

v3.29.1

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• Fixed dependencies of some entries
• Fixed ToString conversion / built-ins nature of some accessors
• String.prototype.{ isWellFormed, toWellFormed } marked as supported from V8 ~ Chrome 111
• Added Opera Android 74 compat data mapping

v3.29.0

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• Added URLSearchParams.prototype.size getter, url/734
• Allowed cloning resizable ArrayBuffers in the structuredClone polyfill
• Fixed wrong export in /(stable|actual|full)/instance/unshift entries, #​1207
• Compat data improvements:
  • Set methods proposal marked as supported from Bun 0.5.7
  • String.prototype.toWellFormed marked as fixed from Bun 0.5.7
  • Added Deno 1.31 compat data mapping

v3.28.0

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3.28.0 - 2023.02.14

v3.27.2

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• Set methods proposal updates:
  • Closing of iterators of Set-like objects on early exit, proposal-set-methods/85
  • Some other minor internal changes
• Added one more workaround of a webpack dev server bug on IE global methods, #​1161
• Fixed possible String.{ raw, cooked } error with empty template array
• Used non-standard V8 Error.captureStackTrace instead of stack parsing in new error classes / wrappers where it's possible
• Added detection correctness of iteration to Promise.{ allSettled, any } feature detection, Hermes issue
• Compat data improvements:
  • Change Array by copy proposal marked as supported from V8 ~ Chrome 110
  • Added Samsung Internet 20 compat data mapping
  • Added Quest Browser 25 compat data mapping
  • Added React Native 0.71 Hermes compat data
  • Added Electron 23 and 24 compat data mapping
  • self marked as fixed in Deno 1.29.3, deno/17362
• Minor tweaks of minification settings for core-js-bundle
• Refactoring, some minor fixes, improvements, optimizations

v3.27.1

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• Fixed a Chakra-based MS Edge (18-) bug that unfreeze (O_o) frozen arrays used as WeakMap keys
• Fixing of the previous bug also fixes some cases of String.dedent in MS Edge
• Fixed dependencies of some entries

v3.27.0

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• Iterator Helpers proposal:
  • Built-ins:
    • Iterator
      • Iterator.from
      • Iterator.prototype.drop
      • Iterator.prototype.every
      • Iterator.prototype.filter
      • Iterator.prototype.find
      • Iterator.prototype.flatMap
      • Iterator.prototype.forEach
      • Iterator.prototype.map
      • Iterator.prototype.reduce
      • Iterator.prototype.some
      • Iterator.prototype.take
      • Iterator.prototype.toArray
      • Iterator.prototype.toAsync
      • Iterator.prototype[@​@​toStringTag]
    • AsyncIterator
      • AsyncIterator.from
      • AsyncIterator.prototype.drop
      • AsyncIterator.prototype.every
      • AsyncIterator.prototype.filter
      • AsyncIterator.prototype.find
      • AsyncIterator.prototype.flatMap
      • AsyncIterator.prototype.forEach
      • AsyncIterator.prototype.map
      • AsyncIterator.prototype.reduce
      • AsyncIterator.prototype.some
      • AsyncIterator.prototype.take
      • AsyncIterator.prototype.toArray
      • AsyncIterator.prototype[@​@​toStringTag]
  • Moved to Stage 3, November 2022 TC39 meeting
  • Added /actual/ entries, unconditional forced replacement disabled for features that survived to Stage 3
  • .from accept strings, .flatMap throws on strings returned from the callback, proposal-iterator-helpers/244, proposal-iterator-helpers/250
  • .from and .flatMap throws on non-object iterators, proposal-iterator-helpers/253
• Set methods proposal:
  • Built-ins:
    • Set.prototype.intersection
    • Set.prototype.union
    • Set.prototype.difference
    • Set.prototype.symmetricDifference
    • Set.prototype.isSubsetOf
    • Set.prototype.isSupersetOf
    • Set.prototype.isDisjointFrom
  • Moved to Stage 3, November 2022 TC39 meeting
  • Reimplemented with new semantics:
    • Optimized performance (iteration over lowest set)
    • Accepted only Set-like objects as an argument, not all iterables
    • Accepted only Sets as this, no @@​species support, and other minor changes
  • Added /actual/ entries, unconditional forced replacement changed to feature detection
  • For avoiding breaking changes:
    • New versions of methods are implemented as new modules and available in new entries or entries where old versions of methods were not available before (like /actual/ namespace)
    • In entries where they were available before (like /full/ namespace), those methods are available with fallbacks to old semantics (in addition to Set-like, they accept iterable objects). This behavior will be removed from the next major release
• Well-Formed Unicode Strings proposal:
  • Methods:
    • String.prototype.isWellFormed
    • String.prototype.toWellFormed
  • Moved to Stage 3, November 2022 TC39 meeting
  • Added /actual/ entries, disabled unconditional forced replacement
• Explicit resource management Stage 3 and Async explicit resource management Stage 2 proposals:
  • Renamed from "using statement" and split into 2 (sync and async) proposals
  • In addition to already present well-known symbols, added new built-ins:
    • Symbol.dispose
    • Symbol.asyncDispose
    • SuppressedError
    • DisposableStack
      • DisposableStack.prototype.dispose
      • DisposableStack.prototype.use
      • DisposableStack.prototype.adopt
      • DisposableStack.prototype.defer
      • DisposableStack.prototype.move
      • DisposableStack.prototype[@​@​dispose]
    • AsyncDisposableStack
      • AsyncDisposableStack.prototype.disposeAsync
      • AsyncDisposableStack.prototype.use
      • AsyncDisposableStack.prototype.adopt
      • AsyncDisposableStack.prototype.defer
      • AsyncDisposableStack.prototype.move
      • AsyncDisposableStack.prototype[@​@​asyncDispose]
    • Iterator.prototype[@​@​dispose]
    • AsyncIterator.prototype[@​@​asyncDispose]
  • Sync version of this proposal moved to Stage 3, November 2022 TC39 meeting
  • Added /actual/ namespace entries for Stage 3 proposal
• Added String.dedent stage 2 proposal
  • Method String.dedent
  • Throws an error on non-frozen raw templates for avoiding possible breaking changes in the future, proposal-string-dedent/75
• Compat data targets improvements:
  • React Native from 0.70 shipped with Hermes as the default engine. However, bundled Hermes versions differ from standalone Hermes releases. So added react-native target for React Native with bundled Hermes.
  • According to the documentation, Oculus Browser was renamed to Meta Quest Browser, so oculus target was renamed to quest.
  • opera_mobile target name is confusing since it contains data for the Chromium-based Android version, but iOS Opera is Safari-based. So opera_mobile target was renamed to opera-android.
  • android target name is also confusing for someone - that means Android WebView, some think thinks that it's Chrome for Android, but they have some differences. For avoiding confusion, added chrome-android target.
  • For consistency with two previous cases, added firefox-android target.
  • For avoiding breaking changes, the oculus and opera_mobile fields are available in the compat data till the next major release.
• Compat data improvements:
  • Array.fromAsync marked as supported from Bun 0.3.0
  • String.prototype.{ isWellFormed, toWellFormed } marked as supported from Bun 0.4.0
  • Change Array by copy proposal marked as supported from Deno 1.27, deno/16429
  • Added Deno 1.28 / 1.29 compat data mapping
  • Added NodeJS 19.2 compat data mapping
  • Added Samsung Internet 19.0 compat data mapping
  • Added Quest Browser 24.0 compat data mapping
  • Fixed the first version in the Chromium-based Edge compat data mapping
• { Map, WeakMap }.prototype.emplace became stricter by the spec draft
• Smoothed behavior of some conflicting proposals
• Removed some generic behavior (like @@​species pattern) of some .prototype methods from the new collections methods proposal and the Array deduplication proposal that most likely will not be implemented since it contradicts the current TC39 policy
• Added pure version of the Number constructor, #​1154, #​1155, thanks @​trosos
• Added set(Timeout|Interval|Immediate) extra arguments fix for Bun 0.3.0- (similarly to IE9-), bun/1633
• Fixed handling of sparse arrays in structuredClone, #​1156
• Fixed a theoretically possible future conflict of polyfills definitions in the pure version
• Some refactoring and optimization

v3.26.1

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• Disabled forced replacing of Array.fromAsync since it's on Stage 3
• Avoiding a check of the target in the internal function-uncurry-this helper where it's not required - minor optimization and preventing problems in some broken environments, a workaround of #​1141
• V8 will not ship Array.prototype.{ group, groupToMap } in V8 ~ Chromium 108, proposal-array-grouping/44

v3.26.0

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• Array.fromAsync proposal:
  • Moved to Stage 3, September TC39 meeting
  • Avoid observable side effects of %Array.prototype.values% usage in array-like branch, proposal-array-from-async/30
• Added well-formed unicode strings stage 2 proposal:
  • String.prototype.isWellFormed
  • String.prototype.toWellFormed
• Recent updates of the iterator helpers proposal:
  • Added a counter parameter to helpers, proposal-iterator-helpers/211
  • Don't await non-objects returned from functions passed to AsyncIterator helpers, proposal-iterator-helpers/239
  • { Iterator, AsyncIterator }.prototype.flatMap supports returning both - iterables and iterators, proposal-iterator-helpers/233
  • Early exit on broken .next in missed cases of { Iterator, AsyncIterator }.from, proposal-iterator-helpers/232
• Added self polyfill as a part of The Minimum Common Web Platform API, specification, #​1118
• Added inverse option to core-js-compat, #​1119
• Added format option to core-js-builder, #​1120
• Added NodeJS 19.0 compat data
• Added Deno 1.26 and 1.27 compat data
• Added Opera Android 72 compat data mapping
• Updated Electron 22 compat data mapping

v3.25.5

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• Fixed regression with an error on reuse of some built-in methods from another realm, #​1133

v3.25.4

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• Added a workaround of a Nashorn bug with Function.prototype.{ call, apply, bind } on string methods, #​1128
• Updated lists of [Serializable] and [Transferable] objects in the structuredClone polyfill. Mainly, for better error messages if polyfilling of cloning such types is impossible
• Array.prototype.{ group, groupToMap } marked as supported from V8 ~ Chromium 108
• Added Electron 22 compat data mapping

v3.25.3

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• Forced polyfilling of Array.prototype.groupToMap in the pure version for returning wrapped Map instances
• Fixed existence of Array.prototype.{ findLast, findLastIndex } in /stage/4 entry
• Added Opera Android 71 compat data mapping
• Some stylistic changes

v3.25.2

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• Considering document.all as a callable in some missed cases
• Added Safari 16.0 compat data
• Added iOS Safari 16.0 compat data mapping
• Fixed some ancient iOS Safari versions compat data mapping

v3.25.1

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• Added some fixes and workarounds of FF30- typed arrays bug that does not properly convert objects to numbers
• Added sideEffects field to core-js-pure package.json for better tree shaking, #​1117
• Dropped semver dependency from core-js-compat
  • semver package (ironically) added a breaking change and dropped NodeJS 8 support in the minor 7.1 version, after that semver in core-js-compat was pinned to 7.0 since for avoiding breaking changes it should support NodeJS 8. However, since core-js-compat is usually used with other packages that use semver dependency, it causes multiple duplication of semver in dependencies. So I decided to remove semver dependency and replace it with a couple of simple helpers.
• Added Bun 0.1.6-0.1.11 compat data
• Added Deno 1.25 compat data mapping
• Updated Electron 21 compat data mapping
• Some stylistic changes, minor fixes, and improvements

v3.25.0

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• Added Object.prototype.__proto__ polyfill
  • It's optional, legacy, and in some cases (mainly because of developers' mistakes) can cause problems, but some libraries depend on it, and most code can't work without the proper libraries' ecosystem
  • Only for modern engines where this feature is missed (like Deno), it's not installed in IE10- since here we have no proper way setting of the prototype
  • Without fixes of early implementations where it's not an accessor since those fixes are impossible
  • Only for the global version
• Considering document.all as an object in some missed cases, see ECMAScript Annex B 3.6
• Avoiding unnecessary promise creation and validation result in %WrapForValid(Async)IteratorPrototype%.return, proposal-iterator-helpers/215
• Fixed omitting the result of proxing .return in %IteratorHelperPrototype%.return, #​1116
• Fixed the order creation of properties of iteration result object of some iterators (value should be created before done)
• Fixed some cases of Safari < 13 bug - silent on non-writable array .length setting
• Fixed ArrayBuffer.length in V8 ~ Chrome 27-
• Relaxed condition of re-usage native WeakMap for internal states with multiple core-js copies
• Availability cloning of FileList in the structuredClone polyfill extended to some more old engines versions
• Some stylistic changes and minor fixes
• Throwing a TypeError in core-js-compat / core-js-builder in case of passing invalid module names / filters for avoiding unexpected result, related to #​1115
• Added missed NodeJS 13.2 to esmodules core-js-compat / core-js-builder target
• Added Electron 21 compat data mapping
• Added Oculus Browser 23.0 compat data mapping

v3.24.1

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• NodeJS is ignored in IS_BROWSER detection to avoid a false positive with jsdom, #​1110
• Fixed detection of @@​species support in Promise in some old engines
• { Array, %TypedArray% }.prototype.{ findLast, findLastIndex } marked as shipped in FF104
• Added iOS Safari 15.6 compat data mapping
• Fixed Opera 15 compat data mapping

v3.24.0

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• Recent updates of the iterator helpers proposal, #​1101:
  • .asIndexedPairs renamed to .indexed, proposal-iterator-helpers/183:
    • Iterator.prototype.asIndexedPairs -> Iterator.prototype.indexed
    • AsyncIterator.prototype.asIndexedPairs -> AsyncIterator.prototype.indexed
  • Avoid exposing spec fiction %AsyncFromSyncIteratorPrototype% in AsyncIterator.from and Iterator.prototype.toAsync, proposal-iterator-helpers/182, proposal-iterator-helpers/202
  • Avoid unnecessary promise creation in %WrapForValidAsyncIteratorPrototype%.next, proposal-iterator-helpers/197
  • Do not validate value in %WrapForValid(Async)IteratorPrototype%.next, proposal-iterator-helpers/197 and proposal-iterator-helpers/205
  • Do not forward the parameter of .next / .return to an underlying iterator by the extended iterator protocol, a part of proposal-iterator-helpers/194
  • .throw methods removed from all wrappers / helpers prototypes, a part of proposal-iterator-helpers/194
  • Close inner iterators of { Iterator, AsyncIterator }.prototype.flatMap proxy iterators on .return, proposal-iterator-helpers/195
  • Throw RangeError on NaN in { Iterator, AsyncIterator }.prototype.{ drop, take }, proposal-iterator-helpers/181
  • Many other updates and fixes of this proposal
• %TypedArray%.prototype.toSpliced method removed from the change array by copy proposal and marked as obsolete in core-js, proposal-change-array-by-copy/88
• Polyfill Promise with unhandledrejection event support (browser style) in Deno < 1.24
• Available new targets in core-js-compat / core-js-builder and added compat data for them:
  • Bun (bun), compat data for 0.1.1-0.1.5, #​1103
  • Hermes (hermes), compat data for 0.1-0.11, #​1099
  • Oculus Browser (oculus), compat data mapping for 3.0-22.0, #​1098
• Added Samsung Internet 18.0 compat data mapping

v3.23.5

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• Fixed a typo in the structuredClone feature detection, #​1106
• Added Opera Android 70 compat data mapping

v3.23.4

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• Added a workaround of the Bun ~ 0.1.1 bug that define some globals with incorrect property descriptors and that causes a crash of core-js
• Added a fix of the FF103+ structuredClone bugs (1774866 (fixed in FF104) and 1777321 (still not fixed)) that now can clone errors, but .stack of the clone is an empty string
• Fixed { Map, WeakMap }.prototype.emplace logic, #​1102
• Fixed order of errors throwing on iterator helpers

v3.23.3

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• Changed the order of operations in %TypedArray%.prototype.toSpliced following proposal-change-array-by-copy/89
• Fixed regression of some IE8- issues

v3.23.2

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• Avoided creation of extra properties for the handling of %TypedArray% constructors in new methods, #​1092 (comment)
• Added Deno 1.23 compat data mapping

v3.23.1

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• Fixed possible error on multiple core-js copies, #​1091
• Added v flag to RegExp.prototype.flags implementation in case if current V8 bugs will not be fixed before this flag implementation

v3.23.0

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• Array find from last moved to the stable ES, according to June 2022 TC39 meeting:
  • Array.prototype.findLast
  • Array.prototype.findLastIndex
  • %TypedArray%.prototype.findLast
  • %TypedArray%.prototype.findLastIndex
• Methods from the Array grouping proposal renamed, according to June 2022 TC39 meeting:
  • Array.prototype.groupBy -> Array.prototype.group
  • Array.prototype.groupByToMap -> Array.prototype.groupToMap
• Changed the order of operations in %TypedArray%.prototype.with following proposal-change-array-by-copy/86, according to June 2022 TC39 meeting
• Decorator Metadata proposal extracted from Decorators proposal as a separate stage 2 proposal, according to March 2022 TC39 meeting, Symbol.metadataKey replaces Symbol.metadata
• Added Array.prototype.push polyfill with some fixes for modern engines
• Added Array.prototype.unshift polyfill with some fixes for modern engines
• Fixed a bug in the order of getting flags in RegExp.prototype.flags in the actual version of V8
• Fixed property descriptors of some Math and Number constants
• Added a workaround of V8 ArrayBufferDetaching protector cell invalidation and performance degradation on structuredClone feature detection, one more case of #​679
• Added detection of NodeJS bug in structuredClone that can not clone DOMException (just in case for future versions that will fix other issues)
• Compat data:
  • Added NodeJS 18.3 compat data mapping
  • Added and fixed Deno 1.22 and 1.21 compat data mapping
  • Added Opera Android 69 compat data mapping
  • Updated Electron 20.0 compat data mapping

v3.22.8

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• Fixed possible multiple call of ToBigInt / ToNumber conversion of the argument passed to %TypedArray%.prototype.fill in V8 ~ Chrome < 59, Safari < 14.1, FF < 55, Edge <=18
• Fixed some cases of DeletePropertyOrThrow in IE9-
• Fixed the kind of error (TypeError instead of Error) on incorrect exec result in RegExp.prototype.test polyfill
• Fixed dependencies of { actual, full, features }/typed-array/at entries
• Added Electron 20.0 compat data mapping
• Added iOS Safari 15.5 compat data mapping
• Refactoring

v3.22.7

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• Added a workaround for V8 ~ Chrome 53 bug with non-writable prototype of some methods, #​1083

v3.22.6

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• Fixed possible double call of ToNumber conversion on arguments of Math.{ fround, trunc } polyfills
• Array.prototype.includes marked as fixed in FF102

v3.22.5

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• Ensured that polyfilled constructors .prototype is non-writable
• Ensured that polyfilled methods .prototype is not defined
• Added detection and fix of a V8 ~ Chrome <103 bug of struturedClone that returns null if cloned object contains multiple references to one error

v3.22.4

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• Ensured proper .length of polyfilled functions even in compressed code (excepting some ancient engines)
• Ensured proper .name of polyfilled accessors (excepting some ancient engines)
• Ensured proper source / ToString conversion of polyfilled accessors
• Actualized Rhino compat data
• Refactoring

v3.22.3

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• Added a fix for FF99+ Array.prototype.includes broken on sparse arrays

v3.22.2

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• Fixed URLSearchParams in IE8- that was broken in the previous release
• Fixed __lookupGetter__ entries

v3.22.1

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• Improved some cases of RegExp flags handling
• Prevented experimental warning in NodeJS ~ 18.0 on detection fetch API
• Added NodeJS 18.0 compat data

v3.22.0

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• Change Array by copy proposal:
  • Moved to Stage 3, March TC39 meeting
  • Disabled forced replacement and added /actual/ entry points for methods from this proposal
  • Array.prototype.toSpliced throws a TypeError instead of RangeError if the result length is more than MAX_SAFE_INTEGER, proposal-change-array-by-copy/70
• Added some more atob / btoa fixes:
  • NodeJS <17.9 atob does not ignore spaces, node/42530
  • Actual NodeJS atob does not validate encoding, node/42646
  • FF26- implementation does not properly convert argument to string
  • IE / Edge <16 implementation have wrong arity
• Added /full/ namespace as the replacement for /features/ since it's more descriptive in context of the rest namespaces (/es/ ⊆ /stable/ ⊆ /actual/ ⊆ /full/)
• Avoided propagation of removed parts of proposals to upper stages. For example, %TypedArray%.prototype.groupBy was removed from the Array grouping proposal a long time ago. We can't completely remove this method since it's a breaking change. But this proposal has been promoted to stage 3 - so the proposal should be promoted without this method, this method should not be available in /actual/ entries - but it should be available in early-stage entries to avoid breakage.
• Significant internal refactoring and splitting of modules (but without exposing to public API since it will be a breaking change - it will be exposed in the next major version)
• Bug fixes:
  • Fixed work of non-standard V8 Error features with wrapped Error constructors, #​1061
  • null and undefined allowed as the second argument of structuredClone, #​1056
• Tooling:
  • Stabilized proposals are filtered out from the core-js-compat -> core-js-builder -> core-js-bundle output. That mean that if the output contains, for example, es.object.has-own, the legacy reference to it, esnext.object.has-own, no longer added.
  • Aligned modules filters of core-js-builder and core-js-compat, now it's modules and exclude options
  • Added support of entry points, modules, regexes, and arrays of them to those filters
  • Missed targets option of core-js-compat means that the targets filter just will not be applied, so the result will contain modules required for all possible engines
• Compat data:
  • .stack property on DOMException marked as supported from Deno 1.15
  • Added Deno 1.21 compat data mapping
  • Added Electron 19.0 and updated 18.0 compat data mapping
  • Added Samsung Internet 17.0 compat data mapping
  • Added Opera Android 68 compat data mapping

v3.21.1

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• Added a bugfix for the WebKit Array.prototype.{ groupBy, groupByToMap } implementation
• core-js-compat targets parser transforms engine names to lower case
• atob / btoa marked as fixed in NodeJS 17.5
• Added Electron 18.0 compat data mapping
• Added Deno 1.20 compat data mapping

v3.21.0

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• Added Base64 utility methods:
  • atob
  • btoa
• Added the proper validation of arguments to some methods from web standards
• Forced replacement of all features from early-stage proposals for avoiding possible web compatibility issues in the future
• Added Rhino 1.7.14 compat data
• Added Deno 1.19 compat data mapping
• Added Opera Android 66 and 67 compat data mapping
• Added iOS Safari 15.3 and 15.4 compat data mapping

v3.20.3

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• Detects and replaces broken third-party Function#bind polyfills, uses only native Function#bind in the internals
• structuredClone should throw an error if no arguments passed
• Changed the structure of notes in __core-js_shared__

v3.20.2

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• Added a fix of a V8 ~ Chrome 36- Object.{ defineProperty, defineProperties } bug, Babel issue
• Added fixes of some different %TypedArray%.prototype.set bugs, affects modern engines (like Chrome < 95 or Safari < 14.1)

v3.20.1

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• Fixed the order of calling reactions of already fulfilled / rejected promises in Promise.prototype.then, #​1026
• Fixed possible memory leak in specific promise chains
• Fixed some missed dependencies of entries
• Added Deno 1.18 compat data mapping

v3.20.0

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• Added structuredClone method from the HTML spec, see MDN
  • Includes all cases of cloning and transferring of required ECMAScript and platform types that can be polyfilled, for the details see the caveats
  • Uses native structured cloning algorithm implementations where it's possible
  • Includes the new semantic of errors cloning from html/5749
• Added DOMException polyfill, the Web IDL spec, see MDN
  • Includes DOMException and its attributes polyfills w…