Babel: v7.10.0 Release

v7.10.0 (2020-05-26)

Thanks @AndrewLeedham, @fisker, @kik-o, @kitos, @lazytype for their first PRs!

We are also releasing the first experimental version of the new polyfills plugins: you can check them out at babel/babel-polyfills.

:eyeglasses: Spec Compliance

• babel-plugin-proposal-logical-assignment-operators
  • #11370 logical-assignment: Do not assign names to anonymous functions (@arku)

:rocket: New Feature

• babel-helper-create-class-features-plugin, babel-helper-member-expression-to-functions, babel-helper-optimise-call-expression, babel-helper-replace-supers, babel-parser, babel-plugin-proposal-class-properties
  • #11248 Handle private access chained on an optional chain (@jridgewell)
• babel-standalone
  • #11593 feat: add privatePropertyInObject to babel-standalone (@JLHwung)
  • #11466 Support data-type="module" to generate native <script type="module"> (@dfabulich)
• babel-cli, babel-helper-create-class-features-plugin, babel-parser, babel-plugin-proposal-private-property-in-object, babel-types
  • #11372 Add private-property-in-object support (@jridgewell)
• babel-compat-data, babel-plugin-transform-template-literals, babel-plugin-transform-unicode-escapes, babel-preset-env, babel-standalone
  • #11377 Transform ES2015 Unicode Escapes to ES5 (@jridgewell)
• babel-parser, babel-plugin-syntax-module-attributes, babel-standalone
  • #10962 added basic support for module attributes and tests updated (@vivek12345)
• babel-helper-compilation-targets, babel-preset-env
  • #11434 [preset-env] Add browserslistEnv option (@AndrewLeedham)
• babel-cli
  • #11220 Log after subsequent compilations in --watch mode (@nicolo-ribaudo)
• babel-helpers, babel-plugin-transform-destructuring, babel-plugin-transform-spread, babel-traverse
  • #11265 Add "allowArrayLike" option to the destructuring and spread transforms (@nicolo-ribaudo)
• babel-helpers, babel-plugin-transform-for-of, babel-preset-env
  • #11266 Add "allowArrayLike" support to the for-of transform (@nicolo-ribaudo)
• babel-parser
  • #11406 Enable import.meta by default in @babel/parser (#11364) (@kik-o)
• babel-plugin-transform-react-pure-annotations, babel-preset-react
  • #11428 Implement plugin-transform-react-pure-annotationsand add to preset-react (@devongovett)
• babel-compat-data, babel-preset-env
  • #11451 Add class proposals to shipped proposals (@JLHwung)

:bug: Bug Fix

• babel-traverse
  • #11595 scope.rename() missing identifier in VariableDeclarator (@yulanggong)
• babel-plugin-proposal-optional-chaining
  • #10961 fix: optional-chaining should work correctly with ts non-null operator (@macabeus)
• babel-parser, babel-types
  • #11547 refactor: add isLiteralPropertyName to parser utils (@JLHwung)
• babel-plugin-transform-typescript
  • #11523 fix: don't elide jsx pragma import namespaces (@jquense)
• babel-plugin-proposal-object-rest-spread
  • #11550 fix(plugin-proposal-object-rest-spread): use computed memberExpression for literal keys (@kitos)
• babel-plugin-transform-runtime
  • #11530 fix: skip transforming delete something.includes (@JLHwung)
• babel-generator
  • #11502 getters and setters support in generator for declare class statement (@zxbodya)

:nail_care: Polish

• babel-helpers, babel-plugin-proposal-class-properties, babel-plugin-proposal-decorators, babel-plugin-transform-classes, babel-plugin-transform-function-name, babel-plugin-transform-parameters, babel-plugin-transform-react-jsx, babel-plugin-transform-runtime, babel-plugin-transform-typescript, babel-preset-env
  • #11514 [helpers] Add a private function name within createSuper (@cpojer)

:house: Internal

• Other
  • #11603 Fix typo (@fisker)
  • #11598 chore: use latest node in GitHub actions (@JLHwung)
  • #11590 chore: update test262 (@JLHwung)
  • #11522 chore: pin windows node.js version (@JLHwung)
  • #11504 chore: update babel deps (@JLHwung)
• babel-parser
  • #11597 Fix comments for smartPipeline topic-forbidding contexts (@lazytype)
• babel-core, babel-generator, babel-helper-compilation-targets, babel-helpers, babel-parser, babel-plugin-proposal-decorators, babel-plugin-proposal-json-strings, babel-plugin-transform-block-scoping, babel-plugin-transform-flow-comments, babel-plugin-transform-modules-systemjs, babel-plugin-transform-react-jsx-source, babel-plugin-transform-runtime, babel-preset-env, babel-standalone, babel-template, babel-traverse, babel-types
  • #11512 Use ?. where it represents the intended semantics (@nicolo-ribaudo)

:running_woman: Performance

• babel-plugin-proposal-object-rest-spread
  • #11520 Use single object spread call in loose mode (@jridgewell)

:leftwards_arrow_with_hook: Revert

• babel-standalone
  • #11538 Downgrade rollup to 1.27.9 (@nicolo-ribaudo)

Committers: 18

• Andrew Leedham (@AndrewLeedham)
• Arun Kumar Mohan (@arku)
• Bogdan Savluk (@zxbodya)
• Bruno Macabeus (@macabeus)
• Christoph Nakazawa (@cpojer)
• Devon Govett (@devongovett)
• Henry Zhu (@hzoo)
• Huáng Jùnliàng (@JLHwung)
• Jason Quense (@jquense)
• Justin Ridgewell (@jridgewell)
• Kiko Estrada (@kik-o)
• Nicolò Ribaudo (@nicolo-ribaudo)
• Nikita Kirsanov (@kitos)
• Vivek Nayyar (@vivek12345)
• @dfabulich
• @lazytype
• fisker Cheung (@fisker)
• 任文龙 (@yulanggong)