npm · #1001 most downloaded on npm

@babel/plugin-transform-async-to-generator

8.0.1babel/babel ↗New releases in your daily digest, changelog included.

Turn async functions into ES2015 generators

Last release 3 months ago
17 Jun 2026
Ships fairly regularly
a new release about every 4 weeks
Most releases are documented
notes for 30 of 36 stable releases
Nothing withdrawn
no release was ever pulled
9 years old
103 releases · first in 2017

Release timeline

103 releases since 2017

20172019202120232025

Releases

7.8.012 Jan 2020
babel-plugin-proposal-numeric-separator
v7.8.0 (2020-01-12)

Blog post on the website

:eyeglasses: Spec Compliance

babel-parser

#10980 Disallow private name in object elements and TS type elements (@JLHwung)

#10955 LiteralPropertyName should allow BigIntLiteral (@JLHwung)

#10953 fix: check await when parsing AsyncArrowBindingIdentifier (@JLHwung)

#10947 Fix: TopLevelAwait should respect await identifiers defined in sub scope. (@JLHwung)

#10946 fix: Class Field Initializer should not allow await expression as immediate child (@JLHwung)

babel-plugin-proposal-numeric-separator

#10938 StringNumericLiteral does not include NumericLiteralSeparator (@JLHwung)

babel-generator, babel-parser, babel-plugin-proposal-private-methods

#10456 [parser] Disallow duplicate and undeclared private names (@nicolo-ribaudo)

:boom: Breaking Change

babel-types

#10917 (opt-in) Improve @babel/types with env.BABEL_TYPES_8_BREAKING (@nicolo-ribaudo)

:rocket: New Feature

babel-standalone

#10821 Merge env-standalone to babel-standalone (@JLHwung)

babel-core

#10783 Add babelrc.json support (@yordis)

#10903 Add support for babel.config.mjs and .babelrc.mjs (@nicolo-ribaudo)

babel-compat-data, babel-preset-env-standalone, babel-preset-env

#10811 Add optional-chaining and nullish-coalescing to preset-env (@Druotic)

babel-helper-module-transforms, babel-plugin-transform-modules-systemjs

#10780 add allowTopLevelThis option to transform-modules-systemjs (@JLHwung)

babel-parser

#10817 enable optional chaining by default in @babel/parser (@jackisherwood)

babel-cli

#10887 --copy-ignored flag added to CLI (@rajasekarm)

#9144 Add --out-file-extension option to babel-cli (@eps1lon)

babel-core, babel-generator, babel-parser

#10819 Enable nullish coalescing by default in @babel/parser (@layershifter)

babel-core, babel-parser

#10843 [parser] enable dynamic import by default (@AbdulAli19)

:bug: Bug Fix

babel-node

#10763 Filename detection should respect short flags (@JLHwung)

babel-plugin-proposal-numeric-separator

#10938 StringNumericLiteral does not include NumericLiteralSeparator (@JLHwung)

babel-preset-env

#10790 Use chrome data when android is absent (@JLHwung)

#10930 fix: Promise.any requires global.AggregateError (@JLHwung)

babel-parser

#10944 When reading a new string, U+2028/2029 should correctly set the new column (@JLHwung)

#10937 Refactor parseSubscript (@JLHwung)

#10901 fix: lost leading comment after named import (@elevatebart)

Other

babel-traverse

#10949 Override toString in case this function is printed (@jayenashar)

babel-helper-module-transforms, babel-plugin-transform-modules-commonjs

#10934 helper-module-transforms: dereference imported template tag (@ajafff)

babel-traverse, babel-types

#10912 Fix parameter expression get binding (@JLHwung)

babel-core

#10914 @babel/core: parse should parse only (@kaicataldo)

babel-helpers

#10902 fix: Object.getOwnPropertySymbols called on non-object (@bassaer)

:nail_care: Polish

babel-node

#9695 Use babel > as prompt in babel-node (@ZYSzys)

babel-parser

#10906 refactor: remove inClassProperty parser state (@JLHwung)

:memo: Documentation

babel-preset-env

#10982 CONTRIBUTING: Update link to plugin-features.js [skip ci] (@andersk)

Other

#10973 Added instructions to fork the repo in order to setup. (@sidntrivedi012)

:house: Internal

babel-preset-env

#10983 chore: update corejs fixtures (@JLHwung)

#10974 chore: update caniuse-usage Chrome 49 related fixtures (@JLHwung)

#10924 Replace custom "findSuggestion" function with "levenary" (@nicolo-ribaudo)

babel-core

#10507 Prepare @babel/core for asynchronicity (@nicolo-ribaudo)

Other

#10979 Reduce false negative cases of typescript parser tests (@JLHwung)

#10976 Update Test262, Flow and TS parser tests (@nicolo-ribaudo)

#10964 Bump coverage target from 80% to 90% (@nicolo-ribaudo)

#10958 Fix recent e2e-vuejs-cli error (@JLHwung)

#10919 Add integration test: e2e-vue-cli (@JLHwung)

#10943 chore: update test262 (@JLHwung)

#10918 chore: refine e2e test scripts (@JLHwung)

#10905 chore: separate build-standalone with coverage (@JLHwung)

#10898 Move coverage to GitHub actions (@JLHwung)

babel-compat-data, babel-helper-compilation-targets, babel-preset-env

#10899 Extract targets parser and compat data from preset-env (@nicolo-ribaudo)

babel-parser

#10950 test: add invalid-lone-import test (@JLHwung)

#10936 refactor: remove unecessary checkYieldAwaitInDefaultParams (@JLHwung)

#10935 refactor: remove unused invalidTemplateEscapePosition tokenizer state (@JLHwung)

#10939 TSTypeCastExpression should not be inside call parameters (@JLHwung)

#10942 Remove unused parser methods (@JLHwung)

Every package

#10849 chore: specify package type [skip-ci] (@JLHwung)

:leftwards_arrow_with_hook: Revert

babel-cli

#10923 fix: minified should not accept optional argument (@JLHwung)

Committers: 17

Abdul Ali (@AbdulAli19)

Anders Kaseorg (@andersk)

Barthélémy Ledoux (@elevatebart)

Huáng Jùnliàng (@JLHwung)

Jack Isherwood (@jackisherwood)

James Beavers (@Druotic)

Jayen Ashar (@jayenashar)

Kai Cataldo (@kaicataldo)

Klaus Meinhardt (@ajafff)

Nicolò Ribaudo (@nicolo-ribaudo)

Oleksandr Fediashov (@layershifter)

Raja Sekar (@rajasekarm)

Sebastian Silbermann (@eps1lon)

Siddhant N Trivedi (@sidntrivedi012)

Tsubasa Nakayama (@bassaer)

Yordis Prieto (@yordis)

ZYSzys (@ZYSzys)

7.7.422 Nov 2019

Thanks @chrishinrichs, @khoumani, @m-ahmadi, @BBlackwo, @SakibulMowla, @4geru, @Shriram-Balaji, @ZYSzys and @arku for their first PRs!

v7.7.4 (2019-11-23)

Thanks @chrishinrichs, @khoumani, @m-ahmadi, @BBlackwo, @SakibulMowla, @4geru, @Shriram-Balaji, @ZYSzys and @arku for their first PRs!

:bug: Bug Fix

babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
- #10748 Add support for native esm to @babel/runtime. (@nicolo-ribaudo)
babel-preset-env
- #10742 Update preset-env mappings. (@existentialism)
babel-parser
- #10737 Flow enums: fix enum body location. (@gkz)
- #10657 Fix some incorrect typeof parsing in flow. (@existentialism)
- #10582 [parser] Allow optional async methods. (@gonzarodriguezt)
- #10710 register import equals specifier. (@JLHwung)
- #10592 Allow TypeScript type assertions in array destructuring. (@SakibulMowla)
babel-preset-env-standalone
- #10732 fix: add missing available plugins to babel-preset-env-standalone. (@JLHwung)
babel-plugin-transform-function-name, babel-plugin-transform-modules-umd, babel-preset-env
- #10701 Circumvent typeof transform for umd build template. (@JLHwung)
babel-cli
- #10698 Babel should not silently remove unknown options after commander arguments. (@JLHwung)
babel-plugin-proposal-optional-chaining
- #10694 Fix optional method chaining in derived classes. (@Shriram-Balaji)
babel-parser, babel-types
- #10677 Add asserts this [is type] parsing support. (@JLHwung)
babel-traverse
- #10598 Fix parentheses on replaceWithMultiple for JSX. (@khoumani)
babel-helpers, babel-plugin-proposal-object-rest-spread, babel-preset-env
- #10683 Fix: Don't call Object.keys on non-objects (babel#10482). (@chrishinrichs)

:nail_care: Polish

babel-plugin-proposal-nullish-coalescing-operator
- #10720 polish: skip creating extra reference for safely re-used node. (@JLHwung)

:house: Internal

Other
- #10731 Removed duplicate key in package.json. (@rajasekarm)
- #10718 chore: use loose mode of transform. (@JLHwung)
- #10579 Implement PR workflow for running test262 on babel PRs. (@jbhoosreddy)
- #10648 bump @babel/* dev dependencies. (@JLHwung)
- #10569 E2E test Babel with itself before publishing. (@nicolo-ribaudo)
babel-core
- #10668 Reduce standalone build size. (@JLHwung)
babel-plugin-transform-literals, babel-preset-env-standalone
- #10725 fix typo [ci-skip]. (@JLHwung)
babel-cli
- #10692 Add missing flow type to babel-cli for consistency. (@ZYSzys)

Committers: 15

4geru koichi uchinishi (4geru)
Brian Ng (existentialism)
George Zahariev (gkz)
Huáng Jùnliàng (JLHwung)
Jaideep Bhoosreddy (jbhoosreddy)
Kai Cataldo (kaicataldo)
Kenza Houmani (khoumani)
Mohammad Ahmadi (m-ahmadi)
Nicolò Ribaudo (nicolo-ribaudo)
Raja Sekar (rajasekarm)
Sakibul Mowla (SakibulMowla)
Shriram Balaji (Shriram-Balaji)
ZYSzys (ZYSzys)
chrishinrichs
gr (gonzarodriguezt)

Open source →

7.7.05 Nov 2019

babel-generator, babel-helper-create-class-features-plugin, babel-parser, babel-plugin-transform-typescript, babel-preset-typescript, babel-types

v7.7.0 (2019-11-05)

:eyeglasses: Spec Compliance

babel-types
- #10621 throw a TypeError if identifier validation fails. (@dentrado)
babel-parser
- #10559 fix: Exclude catch clause from let identifier error. (@gonzarodriguezt)
- #10567 [parser] Exception to 8 and 9 in tagged template. (@pnowak)
- #10532 Allow duplicate __proto__ keys in patterns, simple case (#6705). (@alejo90)

:rocket: New Feature

babel-generator, babel-helper-create-class-features-plugin, babel-parser, babel-plugin-transform-typescript, babel-preset-typescript, babel-types
- #10545 Add support for TS declare modifier on fields. (@nicolo-ribaudo)
babel-core, babel-parser, babel-preset-typescript
- #10363 @babel/parser error recovery. (@nicolo-ribaudo)
babel-core
- #10599 Add support for .cjs config files. (@nicolo-ribaudo)
- #10501 Add support for babel.config.json. (@devongovett)
- #10361 feat: if code frame error is on a single line, highlight the whole path. (@SimenB)
babel-plugin-syntax-top-level-await, babel-preset-env
- #10573 Create @babel/plugin-syntax-top-level-await. (@nicolo-ribaudo)
babel-helper-builder-react-jsx, babel-plugin-transform-react-jsx, babel-preset-react
- #10572 [transform-react-jsx] Add useSpread option to transform JSX. (@ivandevp)
babel-generator, babel-parser, babel-plugin-proposal-decorators, babel-plugin-syntax-flow, babel-types
- #10344 Flow enums parsing. (@gkz)
babel-plugin-transform-function-name, babel-plugin-transform-modules-umd, babel-preset-env
- #10477 Changes UMD callsite to be more likely to pass in the intended object.. (@MicahZoltu)
babel-parser
- #10449 Create parser plugin "topLevelAwait". (@nicolo-ribaudo)
- #10521 [parser] Enable "exportNamespaceFrom" by default. (@nicolo-ribaudo)
- #10483 [parser] Add support for private fields in TypeScript. (@nicolo-ribaudo)
babel-generator, babel-parser, babel-types
- #10543 add assertions signature for TypeScript. (@tanhauhau)
babel-cli, babel-register
- #8622 Make dir for babel --out-file. (@TrySound)
babel-cli
- #10399 Closes #8326, add back --quiet option.. (@chris-peng-1244)

:bug: Bug Fix

babel-helpers, babel-plugin-proposal-async-generator-functions, babel-plugin-proposal-function-sent, babel-preset-env
- #10422 Correctly delegate .return() in async generator. (@nicolo-ribaudo)
babel-helper-module-transforms, babel-plugin-transform-modules-commonjs
- #10628 Don't throw when destructuring into a var named as an import. (@nicolo-ribaudo)
babel-plugin-transform-modules-systemjs
- #10638 fix: remove ExportNamedDeclaration when the specifier is empty. (@JLHwung)
babel-parser
- #10631 [TS] Parse calls with type args in optional chains. (@nicolo-ribaudo)
- #10607 fixed missing errors on assignment pattern in object expression. (@vivek12345)
- #10594 [parser] Parse only modifiers of actual methods. (@gonzarodriguezt)
babel-plugin-transform-typescript
- #10555 [TS] Correctly transform computed strings and templates in enums. (@nicolo-ribaudo)
babel-core
- #10623 Fix: inputSourceMap should work when it is an external file. (@JLHwung)
- #10539 fix: remove filename annotation in buildCodeFrameError. (@JLHwung)
babel-plugin-proposal-decorators
- #10578 [decorators] fix: support string literal properties. (@mwhitworth)
babel-helpers, babel-plugin-proposal-dynamic-import, babel-plugin-transform-modules-commonjs, babel-preset-env
- #10574 fix: _interopRequireWildcard should only cache objects. (@samMeow)
babel-traverse
- #9777 [traverse] Allow skipping nodes inserted with .replaceWith(). (@nicolo-ribaudo)
babel-preset-env
- #10146 Inject core-js@3 imports in Program:exit instead of on post(). (@nicolo-ribaudo)
babel-generator
- #10519 Fix generator missing parens around an arrow returning function type. (@existentialism)
babel-plugin-transform-async-to-generator, babel-preset-env, babel-traverse
- #9939 Don't use args rest/spread to hoist super method calls. (@nicolo-ribaudo)

:nail_care: Polish

babel-plugin-transform-classes, babel-plugin-transform-regenerator, babel-preset-env
- #9481 [preset-env] Don't use async-to-generator when already using regenerator. (@nicolo-ribaudo)
babel-helpers, babel-plugin-transform-modules-commonjs, babel-preset-env
- #10585 fix(babel‑helpers/interopRequireWildcard): Avoid double nullish check. (@ExE-Boss)
babel-register
- #10557 fix: disable caching when babel could not read/write cache. (@JLHwung)

:house: Internal

babel-cli, babel-node
- #10619 chore: remove output-file-sync dependency. (@JLHwung)
babel-register
- #10614 chore: bump source-map-support to 0.5.14. (@JLHwung)
babel-helper-create-regexp-features-plugin, babel-plugin-proposal-unicode-property-regex, babel-plugin-transform-dotall-regex, babel-plugin-transform-named-capturing-groups-regex, babel-plugin-transform-unicode-regex, babel-preset-env
- #10447 Merge multiple regex transform plugin. (@JLHwung)
babel-preset-env
- #10612 chore: update web.immediate support fixtures. (@JLHwung)
babel-helper-module-imports
- #10608 Use .find instead of .filter to get targetPath in ImportInjector. (@Andarist)
Other
- #10600 Test node@13 on circle. (@existentialism)
- #10593 chore: replace outdated travis-ci.org badges [ci skip]. (@JLHwung)
- #10591 chore: test against Node.js 13. (@JLHwung)
- #10556 Add master branch workflow for test262 tests. (@jbhoosreddy)
babel-runtime
- #10418 docs: add homepage link. (@DanArthurGallagher)
babel-helper-annotate-as-pure, babel-helper-bindify-decorators, babel-helper-builder-binary-assignment-operator-visitor, babel-helper-builder-react-jsx, babel-helper-call-delegate, babel-helper-define-map, babel-helper-explode-assignable-expression, babel-helper-explode-class, babel-helper-function-name, babel-helper-get-function-arity, babel-helper-hoist-variables, babel-helper-member-expression-to-functions, babel-helper-module-imports, babel-helper-module-transforms, babel-helper-optimise-call-expression, babel-helper-remap-async-to-generator, babel-helper-replace-supers, babel-helper-simple-access, babel-helper-split-export-declaration, babel-helper-wrap-function, babel-helpers, babel-template
- #10568 Bump babel-types to ^7.6.3. (@JLHwung)

:running_woman: Performance

babel-traverse
- #10480 Traverse performance. (@JLHwung)

Committers: 28

Alejandro Sánchez (alejo90)
Bogdan Chadkin (TrySound)
Brian Ng (existentialism)
Chris Garrett (pzuraq)
Daniel Arthur Gallagher (DanArthurGallagher)
Devon Govett (devongovett)
Eugene Myunster (t0lkman)
ExE Boss (ExE-Boss)
George Zahariev (gkz)
Georgii Dolzhykov (thorn0)
Gerald (gera2ld)
Huáng Jùnliàng (JLHwung)
Ivan Medina (ivandevp)
Jaideep Bhoosreddy (jbhoosreddy)
Linus Unnebäck (LinusU)
Martin Forsgren (dentrado)
Mateusz Burzyński (Andarist)
Matthew Whitworth (mwhitworth)
Micah Zoltu (MicahZoltu)
Mohammad Ahmadi (m-ahmadi)
Nicolò Ribaudo (nicolo-ribaudo)
Simen Bekkhus (SimenB)
Tan Li Hau (tanhauhau)
Vivek Nayyar (vivek12345)
gr (gonzarodriguezt)
piotr (pnowak)
samuel kwok (samMeow)
彭驰 (chris-peng-1244)

Open source →

7.5.04 Jul 2019

babel-plugin-proposal-dynamic-import, babel-preset-env-standalone, babel-preset-env

v7.5.0 (2019-07-04)

:eyeglasses: Spec Compliance

babel-parser
- #10099 Disallow "let" as name at lexical bindings (@g-plane)

:rocket: New Feature

babel-parser
- #10091 BigInt type for Flow (@tanhauhau)
- #9450 Implement f# pipeline in parser (@mAAdhaTTah)
- #9912 [legacy decorators] Allow decorating generator methods (@nicolo-ribaudo)
- #9864 [@babel/parser] Add "allowUndeclaredExports" option (@nicolo-ribaudo)
babel-plugin-proposal-dynamic-import, babel-preset-env-standalone, babel-preset-env
- #10109 Add @babel/plugin-proposal-dynamic-import to @babel/preset-env (@nicolo-ribaudo)
babel-plugin-proposal-dynamic-import, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs
- #9552 Create @babel/plugin-proposal-dynamic-import (@nicolo-ribaudo)
babel-plugin-proposal-pipeline-operator, babel-plugin-syntax-pipeline-operator
- #9984 Transform for F# Pipeline (@thiagoarrais)
babel-plugin-transform-typescript, babel-types
- #9785 Implement TypeScript namespace support (@Wolvereness)

:bug: Bug Fix

babel-plugin-proposal-do-expressions, babel-traverse
- #10072 fix await and yield for do expression (@tanhauhau)
babel-helpers, babel-plugin-transform-react-constant-elements
- #10155 Added es3 backward compatibility for react helper code (@sormy)
babel-preset-env
- #10127 Bump compat-table and updating preset-env mappings (@existentialism)
- #8897 Allow defaults query in preset-env (@existentialism)
babel-parser
- #10132 fix import typeof in declare module (@tanhauhau)
- #10084 flow - allow type parameter defaults in function declarations (@tanhauhau)
babel-types
- #10126 fix exportKind declaration in babel-types (@zxbodya)
babel-node
- #9951 Prevents exception on PnP (@arcanis)
babel-generator
- #10041 Fix printer for explicitly inexact Flow types (@mrtnzlml)
babel-plugin-transform-typescript
- #10034 Use scope for typescript export removals (@Wolvereness)
- #10019 fix(typescript): erase default export if exporting a TS type (@airato)
babel-helper-create-class-features-plugin, babel-plugin-proposal-class-properties, babel-traverse
- #10029 Fixed computed keys for class expression (@tanhauhau)
babel-helpers, babel-plugin-proposal-object-rest-spread, babel-preset-env
- #9384 Retry to fix object spread helper compatibility (@saschanaz)
babel-plugin-transform-destructuring
- #10013 fix destructuring rest with template literal (@tanhauhau)
babel-helper-create-class-features-plugin, babel-plugin-transform-typescript
- #9610 Use injectInitialization to generate ts parameter properties (@nicolo-ribaudo)

:nail_care: Polish

babel-core
- #10157 Fix incorrect usage of $o instead of %o in debug (@ChlorideCull)
babel-helpers
- #10117 Simplify the helpers for classPrivateField{Get,Set} (@arv)
babel-plugin-transform-typescript
- #10047 Refactor isImportTypeOnly helper function (@Andarist)

:memo: Documentation

babel-plugin-proposal-partial-application, babel-plugin-syntax-partial-application
- #10103 docs: update readmes (@xtuc)

Committers: 24

Airat Aminev (@airato)
Artem Butusov (@sormy)
Blaine Bublitz (@phated)
Bogdan Savluk (@zxbodya)
Brian Ng (@existentialism)
Daniel Tschinder (@danez)
Erik Arvidsson (@arv)
Henry Zhu (@hzoo)
James DiGioia (@mAAdhaTTah)
Jamie Kyle (@jamiebuilds)
Kagami Sascha Rosylight (@saschanaz)
Letladi Sebesho (@Letladi)
Martin Zlámal (@mrtnzlml)
Mateusz Burzyński (@Andarist)
Maël Nison (@arcanis)
Min ho Kim (@minho42)
Nicolò Ribaudo (@nicolo-ribaudo)
Paul Comanici (@darkyndy)
Pig Fang (@g-plane)
Sebastian Johansson (@ChlorideCull)
Sven Sauleau (@xtuc)
Tan Li Hau (@tanhauhau)
Thiago Arrais (@thiagoarrais)
Wesley Wolfe (@Wolvereness)

Open source →

@babel/plugin-transform-async-to-generator

Release timeline

Releases

v7.8.0 (2020-01-12)

:eyeglasses: Spec Compliance

:boom: Breaking Change

:rocket: New Feature

:bug: Bug Fix

:nail_care: Polish

:memo: Documentation

:house: Internal

:leftwards_arrow_with_hook: Revert

Committers: 17

v7.7.4 (2019-11-23)

:bug: Bug Fix

:nail_care: Polish

:house: Internal

Committers: 15

v7.7.0 (2019-11-05)

:eyeglasses: Spec Compliance

:rocket: New Feature

:bug: Bug Fix

:nail_care: Polish

:house: Internal

:running_woman: Performance

Committers: 28

v7.5.0 (2019-07-04)

:eyeglasses: Spec Compliance

:rocket: New Feature

:bug: Bug Fix

:nail_care: Polish

:memo: Documentation

Committers: 24