Update dependency @babel/preset-env to v7.12.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
@babel/preset-env (source)	devDependencies	minor	7.5.5 -> 7.12.1

---

Release Notes

babel/babel

v7.12.1

Compare Source

🐛 Bug Fix

• babel-cli
  • #​12182 Don't force chokidar@2 to be downloaded from registry.npmjs.org (@​nicolo-ribaudo)
• babel-plugin-transform-runtime, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #​12184 Allow importing @babel/runtime/package (@​nicolo-ribaudo)
• babel-parser
  • #​12183 Reland "Fix: check if param is assignable when parsing arrow return type annotation" (@​nicolo-ribaudo)

🏠 Internal

• Other
  • #​12188 Guard against yarn-issue-1882 (@​JLHwung)
• babel-cli, babel-core, babel-generator, babel-helper-bindify-decorators, babel-helper-call-delegate, babel-helper-compilation-targets, babel-helper-create-class-features-plugin, babel-helper-create-regexp-features-plugin, babel-helper-explode-assignable-expression, babel-helper-explode-class, babel-helper-module-imports, babel-helper-remap-async-to-generator, babel-helper-skip-transparent-expression-wrappers, babel-helpers, babel-node, babel-parser, babel-plugin-external-helpers, babel-plugin-proposal-async-generator-functions, babel-plugin-proposal-class-properties, babel-plugin-proposal-class-static-block, babel-plugin-proposal-decorators, babel-plugin-proposal-do-expressions, babel-plugin-proposal-dynamic-import, babel-plugin-proposal-export-default-from, babel-plugin-proposal-export-namespace-from, babel-plugin-proposal-function-bind, babel-plugin-proposal-function-sent, babel-plugin-proposal-json-strings, babel-plugin-proposal-logical-assignment-operators, babel-plugin-proposal-nullish-coalescing-operator, babel-plugin-proposal-numeric-separator, babel-plugin-proposal-object-rest-spread, babel-plugin-proposal-optional-catch-binding, babel-plugin-proposal-optional-chaining, babel-plugin-proposal-partial-application, babel-plugin-proposal-pipeline-operator, babel-plugin-proposal-private-methods, babel-plugin-proposal-private-property-in-object, babel-plugin-proposal-throw-expressions, babel-plugin-proposal-unicode-property-regex, babel-plugin-syntax-class-properties, babel-plugin-syntax-decorators, babel-plugin-syntax-do-expressions, babel-plugin-syntax-export-default-from, babel-plugin-syntax-flow, babel-plugin-syntax-function-bind, babel-plugin-syntax-function-sent, babel-plugin-syntax-import-assertions, babel-plugin-syntax-jsx, babel-plugin-syntax-module-string-names, babel-plugin-syntax-partial-application, babel-plugin-syntax-pipeline-operator, babel-plugin-syntax-record-and-tuple, babel-plugin-syntax-throw-expressions, babel-plugin-syntax-top-level-await, babel-plugin-syntax-typescript, babel-plugin-transform-arrow-functions, babel-plugin-transform-async-to-generator, babel-plugin-transform-block-scoped-functions, babel-plugin-transform-block-scoping, babel-plugin-transform-classes, babel-plugin-transform-computed-properties, babel-plugin-transform-destructuring, babel-plugin-transform-dotall-regex, babel-plugin-transform-duplicate-keys, babel-plugin-transform-exponentiation-operator, babel-plugin-transform-flow-comments, babel-plugin-transform-flow-strip-types, babel-plugin-transform-for-of, babel-plugin-transform-function-name, babel-plugin-transform-instanceof, babel-plugin-transform-jscript, babel-plugin-transform-literals, babel-plugin-transform-member-expression-literals, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-modules-umd, babel-plugin-transform-named-capturing-groups-regex, babel-plugin-transform-new-target, babel-plugin-transform-object-assign, babel-plugin-transform-object-set-prototype-of-to-assign, babel-plugin-transform-object-super, babel-plugin-transform-parameters, babel-plugin-transform-property-literals, babel-plugin-transform-property-mutators, babel-plugin-transform-proto-to-assign, babel-plugin-transform-react-constant-elements, babel-plugin-transform-react-display-name, babel-plugin-transform-react-inline-elements, babel-plugin-transform-react-jsx-compat, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx-self, babel-plugin-transform-react-jsx-source, babel-plugin-transform-react-jsx, babel-plugin-transform-react-pure-annotations, babel-plugin-transform-regenerator, babel-plugin-transform-reserved-words, babel-plugin-transform-runtime, babel-plugin-transform-shorthand-properties, babel-plugin-transform-spread, babel-plugin-transform-sticky-regex, babel-plugin-transform-strict-mode, babel-plugin-transform-template-literals, babel-plugin-transform-typeof-symbol, babel-plugin-transform-typescript, babel-plugin-transform-unicode-escapes, babel-plugin-transform-unicode-regex, babel-preset-env, babel-preset-flow, babel-preset-react, babel-preset-typescript, babel-register, babel-standalone, babel-traverse, babel-types
  • #​12186 chore: use workspace:* for dev deps (@​JLHwung)
• babel-compat-data, babel-helper-compilation-targets, babel-helper-create-class-features-plugin, babel-helper-remap-async-to-generator, babel-helper-simple-access, babel-helper-transform-fixture-test-runner, babel-plugin-transform-named-capturing-groups-regex, babel-plugin-transform-object-assign, babel-plugin-transform-parameters, babel-plugin-transform-react-jsx-self, babel-plugin-transform-react-jsx-source, babel-plugin-transform-template-literals, babel-preset-env, babel-preset-react, babel-runtime-corejs2, babel-runtime, babel-standalone
  • #​12175 Remove unused dependencies and devDependencies (@​nicolo-ribaudo)

v7.12.0

Compare Source

👓 Spec Compliance

• babel-core, babel-helper-module-transforms, babel-parser, babel-plugin-proposal-export-namespace-from, babel-plugin-syntax-module-string-names, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-modules-umd, babel-types
  • #​12091 String import/export specifier (@​JLHwung)
• babel-parser
  • #​12111 [ts] Throw a syntax error for index signature with declare (@​sosukesuzuki)

🚀 New Feature

• babel-core, babel-generator, babel-parser, babel-plugin-syntax-import-assertions, babel-plugin-syntax-module-attributes, babel-standalone, babel-types
  • #​12139 Parse import-assertions (@​xtuc)
• babel-core, babel-helper-create-class-features-plugin, babel-helper-module-transforms, babel-helper-replace-supers, babel-plugin-proposal-class-static-block, babel-plugin-transform-modules-commonjs, babel-standalone, babel-traverse, babel-types
  • #​12143 Transform class static block (@​JLHwung)
• babel-generator, babel-parser, babel-plugin-syntax-class-static-block, babel-types
  • #​12079 Parse class static block (@​JLHwung)
• babel-generator, babel-parser, babel-types
  • #​12129 Support TypeScript mapped type 'as' clauses (@​existentialism)
  • #​12147 [ts] Add support for the "intrinsic" keyword (@​nicolo-ribaudo)
• babel-parser, babel-types
  • #​12131 [ts] Add support for template interpolations in types (@​nicolo-ribaudo)
• babel-plugin-transform-modules-systemjs
  • #​12163 SystemJS top-level await support (@​guybedford)
• babel-plugin-transform-typescript, babel-preset-typescript
  • #​11950 Add jsxPragmaFrag support to typescript transform (@​JLHwung)
• babel-core, babel-helper-module-transforms, babel-parser, babel-plugin-proposal-export-namespace-from, babel-plugin-syntax-module-string-names, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-systemjs, babel-plugin-transform-modules-umd, babel-types
  • #​12091 String import/export specifier (@​JLHwung)
• babel-core
  • #​11907 Return a list of files that were read from loadPartialConfig (@​devongovett)

🐛 Bug Fix

• babel-parser
  • #​12167 [ts] Add asserts: false to TSTypePredicate node (@​sosukesuzuki)
  • #​12161 Move check for TSTypeCastExpression to catch another case (@​existentialism)
  • #​12120 Throw a recoverable error for missing initializer in const declaration (@​sosukesuzuki)
  • #​12108 Improve syntax error for class fields in ambient context (@​sosukesuzuki)
  • #​12088 Throw a syntax error for empty type parameter/argument (@​sosukesuzuki)
  • #​12093 Throw an error for a declare class field that have an initializer (@​sosukesuzuki)
  • #​12085 Do not throw an error for optional binding pattern params in function declaration (@​sosukesuzuki)
  • #​12076 Fix invalid setter parse (@​fisker)
  • #​12054 Throw a syntax error for a declare function with a body (@​sosukesuzuki)
  • #​12065 Throw a syntax error for a constructor with type parameters (@​sosukesuzuki)
• babel-plugin-transform-typescript
  • #​12149 fix transform-typescript logic to remove definite fields (@​akphi)
  • #​12122 [transform-typescript] Fix import elision for type exports (@​Amareis)
• babel-helper-member-expression-to-functions, babel-plugin-proposal-class-properties, babel-plugin-proposal-nullish-coalescing-operator, babel-plugin-proposal-optional-chaining
  • #​12032 Handle cases when ?? and ?. is in binding initializers (@​JLHwung)
• babel-helper-builder-react-jsx-experimental, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx, babel-preset-react
  • #​12116 add .js extension to react runtime for JSX transform (@​lunaruan)
• babel-traverse, babel-types
  • #​12119 fix: mark Pattern in CatchClause as scope (@​JLHwung)
• babel-generator
  • #​12114 Fix printing TSTypeOperator (@​existentialism)
  • #​12082 Ensure expressions wrapped in parens (@​overlookmotel)
  • #​12081 Fix @babel/generator does not print decorators of private properties (@​zweimach)
  • #​12086 Add sourcemap markings for each line of a string (@​jridgewell)
• babel-plugin-transform-modules-systemjs
  • #​12110 Fix reexporting init-less variable in systemjs (@​JLHwung)
• babel-helper-module-transforms, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-umd, babel-plugin-transform-runtime
  • #​11739 [cjs] Skip duplicate reexported bindings in namespace reexports (@​mischnic)
• babel-helper-create-regexp-features-plugin, babel-plugin-transform-unicode-regex
  • #​12077 Bump regexpu-core (@​existentialism)
• babel-plugin-proposal-do-expressions, babel-traverse
  • #​11728 fix(do-expr): SwitchStatement with IfStatement cases (@​barronwei)

💅 Polish

• babel-parser
  • #​12072 [parser] Better error message for missing number exponent (@​iamfotx)
  • #​12061 Throw a syntax error for a parameter properties in not constructor (@​sosukesuzuki)
• babel-helper-compilation-targets, babel-helper-validator-option, babel-preset-env
  • #​12006 refactor: add @​babel/helper-validator-option (@​JLHwung)

🏠 Internal

• babel-cli, babel-helper-transform-fixture-test-runner, babel-traverse
  • #​11797 Replace lodash 'defaults' usage with ES6 Spread initializer (@​jayaddison)
• babel-plugin-transform-runtime, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  • #​10853 Specify runtime exports (@​JLHwung)
• babel-core
  • #​11689 Instantiate presets before plugins (@​nicolo-ribaudo)
• babel-plugin-proposal-logical-assignment-operators, babel-plugin-proposal-numeric-separator, babel-plugin-syntax-import-meta, babel-plugin-syntax-logical-assignment-operators, babel-plugin-syntax-numeric-separator, babel-plugin-transform-modules-systemjs, babel-preset-env, babel-standalone
  • #​12117 Archive plugins (@​JLHwung)
• Other
  • #​12154 chore: bump gulp-cli to 2.3.0 (@​JLHwung)
  • #​12134 Yarn 2.3 (@​nicolo-ribaudo)
  • #​12099 fix: apply terser plugin only on *.min.js (@​JLHwung)
  • #​12098 docs: update build required node version (@​JLHwung)
  • #​12078 Bump Babel deps (@​existentialism)
  • #​12070 chore: pin browserslist version to 4.12.0 (@​JLHwung)
  • #​12063 chore: add git-blame-ignore-revs (@​JLHwung)
  • #​12049 chore: use latest node on ci workflow when possible (@​JLHwung)
• babel-compat-data, babel-preset-env
  • #​12118 chore: bump electron-to-chromium (@​JLHwung)
• babel-parser
  • #​12103 Add missing tests for TypeScript syntax errors (@​sosukesuzuki)
• babel-core, babel-plugin-transform-runtime
  • #​12102 docs: Fix simple typo, preprelease -> pre-release (@​timgates42)
• babel-compat-data
  • #​12044 chore: remove unused dependencies (@​JLHwung)

v7.11.5

Compare Source

🐛 Bug Fix

• babel-helper-builder-react-jsx-experimental, babel-plugin-transform-react-jsx-development
  • #​12017 Fix jsxDEV for generated elements (@​Timer)
• babel-parser
  • #​11931 fix: ExpressionBody should respect [In] parameter (@​JLHwung)
  • #​11987 Set generator to true during error recovery of accessor (@​existentialism)
• Other
  • #​11993 Added linting support for private class methods (@​giovannicalo)
• babel-plugin-proposal-function-bind
  • #​12000 fix(plugin-proposal-function-bind): fix invalid code emitted for ::super.foo (@​uhyo)

💅 Polish

• babel-traverse
  • #​11832 Forward deopt node path (@​johanholmerin)

🏠 Internal

• Other
  • #​12013 Remove unused enhanced-resolve and normalize lock resolutions (@​JLHwung)
  • #​12010 chore: use Rollup 2 (@​JLHwung)
  • #​12002 Restructure CI workflow (@​JLHwung)
  • #​11781 chore: improve Yarn 2 cache on CI (@​JLHwung)
• Every package
  • #​11962 Use Yarn 2 (@​JLHwung)

v7.11.0

Compare Source

👓 Spec Compliance

• babel-parser
  • #​11852 fix: disallow \8, \9 in strict mode string (@​JLHwung)
  • #​11854 fix: allow 09.1_1 and 09e1_1 in sloppy mode (@​JLHwung)
• babel-plugin-proposal-optional-chaining
  • #​11850 fix: eval?.() is indirect (@​JLHwung)

🚀 New Feature

• babel-cli, babel-core
  • #​11588 add showConfig support (@​JLHwung)
• babel-compat-data, babel-preset-env
  • #​11876 enable logical assignment in babel preset env (@​morrme)
  • #​11865 Add numeric-separator to preset-env (@​JLHwung)
  • #​11849 Add export-namespace-from to preset-env (@​JLHwung)
• babel-parser
  • #​11863 feat: enable numericSeparator parsing support (@​JLHwung)
  • #​11755 Allow unknown/any in TS catch clause param (@​existentialism)
  • #​11753 TypeScript 4.0: Allow spread in the middle of tuples (@​nicolo-ribaudo)
  • #​11815 eslint-parser: ES2020 features (@​JLHwung)
• babel-generator, babel-parser, babel-types
  • #​11754 TypeScript 4.0: Support labeled tuple elements (@​nicolo-ribaudo)
• babel-core, babel-generator, babel-parser, babel-plugin-syntax-decimal, babel-standalone, babel-types
  • #​11640 Add decimal parsing support (@​JLHwung)
• babel-core
  • #​10241 Add cloneInputAst option to babel.transformFromAst (@​coderaiser)

🐛 Bug Fix

• Other
  • #​11896 update: hardcode @​babel/eslint-parser min supported version check (@​kaicataldo)
• babel-helper-skip-transparent-expression-wrappers, babel-plugin-proposal-optional-chaining, babel-plugin-transform-spread
  • #​11404 Skip TSAsExpression when transforming spread in CallExpression (@​oliverdunk)
• babel-helper-member-expression-to-functions, babel-plugin-proposal-class-properties, babel-plugin-proposal-logical-assignment-operators
  • #​11702 add support for logical assignments with private properties (@​ryzokuken)
• babel-plugin-transform-typescript
  • #​11747 Typescript: always strip declare from class fields (@​jamescdavis)
• babel-plugin-transform-runtime
  • #​11893 Fix incorrect module path when absoluteRuntime is specified (@​sz-coder)
• babel-parser
  • #​11862 Correctly check reserved word for PropertyDefinition: IdentifierReference (@​JLHwung)
  • #​11847 fix: correctly set innerEndPos in CoverParenthesizedExpressionAndArrowParameterList (@​JLHwung)
• babel-generator, babel-parser, babel-plugin-transform-typescript
  • #​11767 Follow-up on initial TS4 catch param support (@​JLHwung)
• babel-generator
  • #​11836 Always retain lines for async arrow (@​cwohlman)

💅 Polish

• babel-traverse
  • #​11791 babel-traverse: prefer clearer, reduced-bias option naming (@​jayaddison)

🏠 Internal

• Other
  • #​11688 fix build config to work the same when running on windows (@​zxbodya)
  • #​11894 Prepare to publish @babel/eslint-* packages (@​JLHwung)
  • #​11879 chore: use modules: "auto" (@​JLHwung)
  • #​11875 chore(github): fix issue template typo (@​SirWindfield)
  • #​11706 chore: update spec-new in CONTRIBUTING.md skip ci
• babel-standalone
  • #​11777 chore: build standalone once in prepublish step (@​JLHwung)
• babel-compat-data, babel-helper-compilation-targets, babel-preset-env
  • #​11838 refactor: replace caniuse-db by mdn-browser-compat-data (@​JLHwung)
• babel-compat-data, babel-core, babel-helper-module-transforms, babel-helper-split-export-declaration, babel-parser, babel-plugin-proposal-object-rest-spread, babel-plugin-transform-classes, babel-preset-env, babel-traverse, babel-types
  • #​11846 chore: fix typo in codebase (@​JLHwung)
• babel-types
  • #​11843 refactor: reorganize babel types definitions structure (@​JLHwung)
• babel-compat-data
  • #​11837 chore: use repository HEAD when pulling third party repos (@​JLHwung)

v7.10.4

Compare Source

👓 Spec Compliance

• babel-helper-member-expression-to-functions, babel-plugin-proposal-class-properties
  • #​11669 Add delete obj?.#x.a support (@​JLHwung)
• babel-parser, babel-types
  • #​11652 fix: implement early errors for record and tuple (@​JLHwung)

🐛 Bug Fix

• babel-types
  • #​11752 [regression] Don't validate file.comments in @babel/types (@​nicolo-ribaudo)
• babel-plugin-proposal-do-expressions, babel-types
  • #​11724 fix: do-statementlist behavior (@​wlawt)

💅 Polish

• babel-parser
  • #​11722 Add better parser error when using jsx (@​penguingovernor)
• babel-core
  • #​11544 Refine babel core types (@​JLHwung)

🏠 Internal

• babel-core, babel-helper-fixtures, babel-standalone, babel-traverse
  • #​11758 Replace non-inclusive "whitelist" and "blacklist" terms with "allowlist" etc. (@​wojtekmaj)
• babel-parser
  • #​11376 Add @​babel/eslint-plugin-development-internal (@​kaicataldo)
• babel-core
  • #​11544 Refine babel core types (@​JLHwung)

v7.10.3

Compare Source

👓 Spec Compliance

• babel-parser
  • #​11676 Properly parse export default from when exportDefaultFrom is not enabled (@​JLHwung)
• babel-helper-member-expression-to-functions, babel-plugin-proposal-class-properties, babel-plugin-proposal-optional-chaining
  • #​11662 refactor: do not rely on AST extra properties in plugins (@​JLHwung)
• babel-plugin-proposal-logical-assignment-operators
  • #​11658 Perform NamedEvaluation of Anonymous Functions in Logical Assignment (@​jridgewell)
• babel-helper-create-class-features-plugin, babel-helper-member-expression-to-functions, babel-plugin-proposal-class-properties, babel-plugin-proposal-optional-chaining
  • #​11623 fix: ensure (a?.b)() has proper this (@​JLHwung)

🐛 Bug Fix

• babel-parser, babel-plugin-transform-flow-comments
  • #​11697 Fix innercomments (@​shaodahong)
• babel-helper-member-expression-to-functions, babel-plugin-proposal-class-properties
  • #​11703 fix:added check for forXstatement pattern (@​wlawt)
• babel-template
  • #​11695 Allow templates to parse v8intrinsics (@​jridgewell)
• babel-types
  • #​11687 improve node type definitions to avoid any's in generated types (@​zxbodya)
• babel-plugin-transform-react-pure-annotations
  • #​11685 Add React.createContext to @​babel/plugin-transform-react-pure-annotat… (@​jessethomson)
• babel-parser
  • #​11676 Properly parse export default from when exportDefaultFrom is not enabled (@​JLHwung)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-class-properties, babel-plugin-proposal-private-methods
  • #​11571 Add a check for privateMap's existence (@​AjayPoshak)

💅 Polish

• babel-plugin-transform-typescript
  • #​11682 Fix small typo (@​sajadtorkamani)

🏠 Internal

• Other
  • #​11730 Revert "chore: pin windows node.js version (#​11522)" (@​JLHwung)
  • #​11727 replace whitelist by allowlist in parser-tests (@​JLHwung)
  • #​11677 Bump @​babel/* deps (@​existentialism)
  • #​11672 chore: output ascii only standalone minified bundle (@​JLHwung)
  • #​11647 chore: check version lazily in babel-eslint-parser (@​kaicataldo)
• babel-helper-plugin-utils
  • #​11674 chore: add npmignore to babel-helper-plugin-utils (@​JLHwung)
• babel-plugin-proposal-class-properties, babel-plugin-proposal-private-property-in-object, babel-preset-env
  • #​11655 Fix some test fixtures (@​existentialism)

v7.10.2

Compare Source

🚀 New Feature

• #​11639 feature: babel-eslint-parser passes through config options (@​kaicataldo)

🐛 Bug Fix

• babel-helper-compilation-targets
  • #​11648 fix: don't mutate InputTarget's passed to @​babel/helper-compilation-targets (@​fivetanley)
• babel-helper-create-class-features-plugin, babel-preset-env
  • #​11634 Class features loose should have precedence over preset-env (@​nicolo-ribaudo)
• babel-generator
  • #​11645 fix: add bigIntSuffix to minified output (@​JLHwung)
• babel-generator, babel-types
  • #​11641 Add support for printing ImportAttribute (@​existentialism)
• babel-plugin-syntax-module-attributes, babel-standalone
  • #​11631 Fix moduleAttributesVersion errors with stage-0 preset in babel standalone (@​hamlim)

💅 Polish

• babel-core
  • #​11643 fix: add new plugin names to missing plugin helpers (@​JLHwung)

🏠 Internal

• babel-parser
  • #​11653 refactor: split locationParser into ParserErrors and error message (@​JLHwung)

v7.10.1

Compare Source

🐛 Bug Fix

• babel-preset-env
  • #​11633 [hotfix] Use same targets for fields as for private methods (@​nicolo-ribaudo)
• babel-standalone
  • #​11624 Fix standalone tag when data-type is not set. (@​dfabulich)

🏠 Internal

• Every package
  • #​11625 Use repository.directory field in package.json files (@​saulosantiago)

v7.10.0

Compare Source

👓 Spec Compliance

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

🚀 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 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)

💅 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)

🏠 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)

🏃‍♀️ Performance

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

↩️ Revert

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

v7.9.6

Compare Source

👓 Spec Compliance

• babel-plugin-proposal-object-rest-spread
  • #​11471 Fix evaluation order with object spread, 2 (@​jridgewell)
  • #​11412 Fix evaluation order with object spread (@​Zzzen)
• babel-helper-replace-supers, babel-plugin-proposal-class-properties, babel-plugin-transform-classes
  • #​11480 Super property eval order (@​jridgewell)

🚀 New Feature

• babel-traverse, babel-types
  • #​11448 Adding createFlowUnionType in place of createUnionTypeAnnotation without breaking change (@​Beraliv)

🐛 Bug Fix

• babel-helper-create-class-features-plugin, babel-helpers, babel-plugin-transform-modules-commonjs, babel-preset-env
  • #​11495 Fix helpers.unsupportedIterableToArray for Map and Set (@​ChintanAcharya)
• babel-traverse
  • #​11482 handle objectMethod in scope.isPure (@​Zzzen)
• babel-plugin-transform-typescript
  • #​11410 Throw error for TypeScript declare const enum (@​dosentmatter)
• babel-compat-data
  • #​11462 chore: add node.js 14 support data (@​JLHwung)
• babel-parser
  • #​11449 Set exprAllowed to false for star token (@​existentialism)
  • #​11355 fix: disallow expression after binding identifier of (@​JLHwung)
  • #​11417 fix: report missing plugins on type exports (@​JLHwung)
  • #​11388 fix: do not push new token context when function is following dot/questionDot (@​JLHwung)
• babel-helper-create-class-features-plugin, babel-plugin-proposal-class-properties
  • #​11424 Fix redeclaring private in nested class's superClass (@​jridgewell)
  • #​11405 Fix nested classes reference private fields (@​jridgewell)
• babel-traverse, babel-types
  • #​11378 transform-spread: create TS types (not Flow) when using TS (@​Beraliv)
• babel-standalone
  • #​11395 chore: update stage preset in babel-standalone (@​JLHwung)
• babel-plugin-transform-runtime
  • #​11366 fix: replace backslashes with forward slashes from resolved path for … (@​johannes-z)
• babel-generator, babel-plugin-proposal-decorators, babel-plugin-proposal-pipeline-operator, babel-plugin-proposal-throw-expressions, babel-plugin-transform-async-to-generator
  • #​11382 Unify parens printing for postfix-like expressions (@​nicolo-ribaudo)

💅 Polish

• babel-parser
  • #​11478 Add some parser missing plugins errors (@​JLHwung)
  • #​11417 fix: report missing plugins on type exports (@​JLHwung)
• babel-core
  • #​11421 polish: recommend preset for js extensions (@​JLHwung)
  • #​11397 fix: add classPrivateProperties and classPrivateMethods to missing plugin helper (@​JLHwung)

📝 Documentation

• babel-parser
  • #​11492 docs: update AST spec (@​JLHwung)
• Other
  • #​11493 Add note about experimental nature of @​babel/eslint-* packages (@​kaicataldo)
  • #​11403 contributing.md updates skip ci

🏠 Internal

• babel-compat-data, babel-preset-env
  • #​11496 Update compat table script (@​nicolo-ribaudo)
  • #​11450 Update compat data (@​JLHwung)
• Other
  • #​11479 Canary build of packages using CodeSandbox CI + mini repl (@​hzoo)
  • #​11467 chore: test against node.js 14 (@​JLHwung)
  • #​11456 remove < x.y.z engines specification (@​JLHwung)
  • #​11433 chore: remove included proposal plugins (@​JLHwung)
  • #​11422 chore: upgrade @​babel/* deps (@​JLHwung)
• babel-node
  • #​11440 refactor(babel-node): Refactor babel-node tests configuration (@​arku)

🏃‍♀️ Performance

• 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
  • #​11401 Speed up the createSuper helper (@​jridgewell)

v7.9.5

Compare Source

🐛 Bug Fix

• babel-plugin-proposal-object-rest-spread, babel-plugin-transform-parameters
  • #​11326 Correctly transpile when default parameter initializer references binding in rest pattern (@​vedantroy)
• babel-traverse
  • #​11375 Fixed generateUid creating clashing ids after scope re-crawling (@​Andarist)
  • #​11323 Fixed issue with programPath.scope.references not being registered back correctly after scope re-crawling (@​Andarist)
• babel-plugin-transform-destructuring
  • #​11360 fix Incorrect destructuring compilation of `for (let [[x] = [1]] = []… (@​Zzzen)
• babel-preset-env
  • #​11373 Fixed useBuiltIns and modules validation when using 'false' as option (@​JMarkoski)
• babel-plugin-transform-classes
  • #​11341 Fix createSuper in Babel <7.5.5 (@​nicolo-ribaudo)
• babel-helper-function-name, babel-plugin-transform-function-name
  • #​11361 fix: do not add function name when parent's operator is not = (@​JLHwung)
• babel-helper-builder-react-jsx-experimental, babel-plugin-transform-react-jsx
  • #​11354 fix auto import error with whitespace JSXText (@​lunaruan)
• babel-types
  • #​11359 fix: allow logical assignment operators in AssignmentExpression (@​JLHwung)
• babel-plugin-transform-parameters
  • #​11346 Set correct async/generator in IIFE for params (@​nicolo-ribaudo)
• babel-helper-create-class-features-plugin
  • #​11345 Ignore abstract methods when decorating class (@​oliverdunk)

💅 Polish

• babel-plugin-transform-parameters
  • #​11349 Don't check type annotations when deciding params scope (@​nicolo-ribaudo)
• babel-traverse
  • #​11368 Simplify scope.hasReferences implementation (@​Andarist)
• babel-plugin-proposal-class-properties, babel-plugin-proposal-decorators, babel-plugin-transform-classes, babel-plugin-transform-parameters, babel-plugin-transform-runtime, babel-plugin-transform-typescript, babel-preset-env
  • #​11358 Don't call createSuper in loose mode (it was unused) (@​nicolo-ribaudo)
• babel-generator
  • #​11328 polish: align optional chain whitespace behavior to their sibiling (@​JLHwung)

🏠 Internal

• #​11374 Bump handlebars dep (@​existentialism)
• #​11347 Fix e2e publish test when branching from an older version (@​nicolo-ribaudo)
• #​11329 chore: remove unused graceful-fs (@​JLHwung)

v7.9.0

Compare Source

🚀 New Feature

• babel-generator, babel-helper-builder-react-jsx-experimental, babel-helper-builder-react-jsx, babel-plugin-transform-block-scoping, babel-plugin-transform-classes, babel-plugin-transform-function-name, babel-plugin-transform-react-constant-elements, babel-plugin-transform-react-inline-elements, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx, babel-plugin-transform-regenerator, babel-preset-react, babel-preset-typescript, babel-standalone
  • #​11126 Mark transpiled JSX elements as pure ([@​

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