@babel/cli

:eyeglasses: Spec Compliance

• babel-types

  • throw a TypeError if identifier validation fails. (@dentrado)

• babel-parser

  • fix: Exclude catch clause from let identifier error. (@gonzarodriguezt)

  • [parser] Exception to 8 and 9 in tagged template. (@pnowak)

  • 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

  • Add support for TS declare modifier on fields. (@nicolo-ribaudo)

• babel-core, babel-parser, babel-preset-typescript

  • @babel/parser error recovery. (@nicolo-ribaudo)

• babel-core

  • Add support for .cjs config files. (@nicolo-ribaudo)

  • Add support for babel.config.json. (@devongovett)

  • feat: if code frame error is on a single line, highlight the whole path. (@SimenB)

• babel-plugin-syntax-top-level-await, babel-preset-env

  • Create @babel/plugin-syntax-top-level-await. (@nicolo-ribaudo)

• babel-helper-builder-react-jsx, babel-plugin-transform-react-jsx, babel-preset-react

  • [transform-react-jsx] Add useSpread option to transform JSX. (@ivandevp)

• babel-generator, babel-parser, babel-plugin-proposal-decorators, babel-plugin-syntax-flow, babel-types

  • Flow enums parsing. (@gkz)

• babel-plugin-transform-function-name, babel-plugin-transform-modules-umd, babel-preset-env

  • Changes UMD callsite to be more likely to pass in the intended object.. (@MicahZoltu)

• babel-parser

  • Create parser plugin "topLevelAwait". (@nicolo-ribaudo)

  • [parser] Enable "exportNamespaceFrom" by default. (@nicolo-ribaudo)

  • [parser] Add support for private fields in TypeScript. (@nicolo-ribaudo)

• babel-generator, babel-parser, babel-types

  • add assertions signature for TypeScript. (@tanhauhau)

• babel-cli, babel-register

  • Make dir for babel --out-file. (@TrySound)

• babel-cli

  • 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

  • Correctly delegate .return() in async generator. (@nicolo-ribaudo)

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

  • Don't throw when destructuring into a var named as an import. (@nicolo-ribaudo)

• babel-plugin-transform-modules-systemjs

  • fix: remove ExportNamedDeclaration when the specifier is empty. (@JLHwung)

• babel-parser

  • [TS] Parse calls with type args in optional chains. (@nicolo-ribaudo)

  • fixed missing errors on assignment pattern in object expression. (@vivek12345)

  • [parser] Parse only modifiers of actual methods. (@gonzarodriguezt)

• babel-plugin-transform-typescript

  • [TS] Correctly transform computed strings and templates in enums. (@nicolo-ribaudo)

• babel-core

  • Fix: inputSourceMap should work when it is an external file. (@JLHwung)

  • fix: remove filename annotation in buildCodeFrameError. (@JLHwung)

• babel-plugin-proposal-decorators

  • [decorators] fix: support string literal properties. (@mwhitworth)

• babel-helpers, babel-plugin-proposal-dynamic-import, babel-plugin-transform-modules-commonjs, babel-preset-env

  • fix: _interopRequireWildcard should only cache objects. (@samMeow)

• babel-traverse

  • [traverse] Allow skipping nodes inserted with .replaceWith(). (@nicolo-ribaudo)

• babel-preset-env

  • Inject core-js@3 imports in Program:exit instead of on post(). (@nicolo-ribaudo)

• babel-generator

  • Fix generator missing parens around an arrow returning function type. (@existentialism)

• babel-plugin-transform-async-to-generator, babel-preset-env, babel-traverse

  • 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

  • [preset-env] Don't use async-to-generator when already using regenerator. (@nicolo-ribaudo)

• babel-helpers, babel-plugin-transform-modules-commonjs, babel-preset-env

  • fix(babel‑helpers/interopRequireWildcard): Avoid double nullish check. (@ExE-Boss)

• babel-register

  • fix: disable caching when babel could not read/write cache. (@JLHwung)

:house: Internal

• babel-cli, babel-node

  • chore: remove output-file-sync dependency. (@JLHwung)

• babel-register

  • 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

  • Merge multiple regex transform plugin. (@JLHwung)

• babel-preset-env

  • chore: update web.immediate support fixtures. (@JLHwung)

• babel-helper-module-imports

  • Use .find instead of .filter to get targetPath in ImportInjector. (@Andarist)

• Other

  • Test node@13 on circle. (@existentialism)

  • chore: replace outdated travis-ci.org badges [ci skip]. (@JLHwung)

  • chore: test against Node.js 13. (@JLHwung)

  • Add master branch workflow for test262 tests. (@jbhoosreddy)

• babel-runtime

  • 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

  • Bump babel-types to ^7.6.3. (@JLHwung)

:running_woman: Performance

• babel-traverse

  • Traverse performance. (@JLHwung)