@babel/runtime-corejs2

You can read the release post at babeljs.io/blog/2021/02/22/7.13.0!

Thanks @dsainati1, @immitsu, and @perrin4869 for your first PRs!

:rocket: New Feature

• babel-parser

  • Implement class features in estree (@JLHwung)

• babel-generator, babel-parser, babel-plugin-syntax-module-blocks, babel-standalone, babel-traverse, babel-types

  • Parse JS Module Blocks proposal (@sosukesuzuki)

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

  • Support TypeScript 4.2 abstract constructor signatures (@sosukesuzuki)

  • Flow Enums with unknown members support (@gkz)

• babel-core, babel-register

  • Add cjs as a default extension (@perrin4869)

• babel-traverse

  • feat(referencesImport): support named exports accessed via namespace imports (@jeysal)

• babel-plugin-transform-typescript, babel-preset-typescript

  • Enable allowNamespaces in transform-typescript by default (@JLHwung)

• babel-generator, babel-parser, babel-plugin-transform-flow-strip-types, babel-plugin-transform-parameters, babel-types

  • Support Flow this parameter annotations (@dsainati1)

• babel-plugin-proposal-record-and-tuple

  • Implement "Records and Tuples" transform (@rickbutton)

• babel-plugin-transform-runtime, babel-plugin-transform-typeof-symbol, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime

  • Use conditional exports in @babel/runtime for CJS/ESM (@nicolo-ribaudo)

• babel-core, babel-helper-plugin-utils, babel-preset-env

  • Add @babel/core support for the new assumptions option (@nicolo-ribaudo)

• babel-core, babel-helper-compilation-targets, babel-helper-plugin-utils, babel-preset-env

  • Add targets and browserslist* options to @babel/core (@nicolo-ribaudo)

• babel-core

  • Support .mjs plugins/presets and async factories (@nicolo-ribaudo)

:bug: Bug Fix

• 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

  • Fix _isNativeReflectConstruct helper (@nicolo-ribaudo)

• babel-cli

  • [babel-cli] Don't fail when chmod throws an error (@immitsu)

• babel-node

  • fix: create IPC channel for spawned babel-node process (@JLHwung)

• babel-standalone

  • fix: add regenerate-unicode-properties to dynamicRequireTargets (@JLHwung)

• babel-plugin-proposal-optional-chaining, babel-traverse

  • Fix scope of computed method keys (@overlookmotel)

:house: Internal

• babel-plugin-proposal-async-generator-functions, babel-plugin-proposal-decorators, babel-plugin-transform-runtime, babel-preset-env, babel-runtime-corejs2

  • Use the babel-plugin-polyfill-* packages in transform-runtime (@nicolo-ribaudo)

• babel-plugin-transform-runtime

  • Don't use useESModules in @babel/runtime build script (@nicolo-ribaudo)

• babel-standalone

  • Make sure that Rollup's dynamicRequireTargets are included (@nicolo-ribaudo)

• babel-helper-transform-fixture-test-runner, babel-plugin-proposal-async-generator-functions, babel-plugin-proposal-decorators, babel-preset-env

  • Use the babel-plugin-polyfill-* packages in preset-env (@nicolo-ribaudo)

:running_woman: Performance

• babel-register

  • babel-register: Don’t rewrite the cache if it’s not dirty (@andersk)

:microscope: Output optimization

• babel-helper-create-class-features-plugin, babel-helper-member-expression-to-functions, babel-plugin-proposal-class-properties

  • Support noDocumentAll for obj?.#p (@JLHwung)