Babel (Formerly 6to5) v7.12.13 release notes (2021-02-03)

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Babel (Formerly 6to5) v7.12.13 Release Notes

Release Date: 2021-02-03 // about 3 years ago

:eyeglasses: Spec Compliance
- 📜 babel-parser
  - #12661 spec: disable await binding identifier within static block (@JLHwung)
- 🔌 babel-helper-create-class-features-plugin, babel-helpers, babel-plugin-proposal-private-methods, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
  - #12689 fix: throw error when accessing private method without a getter (@fedeci)
- 🔌 babel-plugin-transform-computed-properties, babel-plugin-transform-shorthand-properties
  - #12664 fix: correctly transform __proto__ properties (@ExE-Boss)
:bug: Bug Fix
- 🔌 babel-plugin-proposal-class-properties, babel-traverse
  - #12729 Fix class fields when super() is in a default param (@nicolo-ribaudo)
- 🔌 babel-plugin-proposal-class-properties, babel-plugin-transform-classes
  - #12723 Define class elements in the correct order (@nicolo-ribaudo)
- 📜 babel-parser, babel-template
  - #12725 Permit %%placeholder%% in left-hand-side of a let declaration (@Zalathar)
- ✅ babel-core, babel-helper-transform-fixture-test-runner, babel-register
  - #12728 Don't use require() in ESM files (@nicolo-ribaudo)
- 📜 babel-parser
  - #12686 (ts) Raise syntax error for an abstract method in non-abstract class (@sosukesuzuki)
  - #12684 fix(parser): throw error with wrong typescript 'export declare' (@fedeci)
  - #12520 Raise recoverable error for await expressions in sync functions (@sosukesuzuki)
  - #12678 fix: start TypePredicate node after returnToken (@JLHwung)
  - #12599 @babel/preset-typescript: fix tsx assigment issue (@Zzzen)
  - #12562 [ts]Add optional property to OptionalCallExpression node that has type arguments (@sosukesuzuki)
- 🔌 babel-helpers, babel-plugin-transform-classes
  - #12693 Avoid hitting proto in _inheritsLoose (@ChALkeR)
- babel-generator
  - #12653 fix: avoid line breaks between class members head and key (@JLHwung)
- babel-register
  - #12665 fix: babel-register transform internal dependencies (@overlookmotel)
- babel-node
  - #12638 fix: place _babel-node after process.execArgv (@JLHwung)
- babel-types
  - #12602 fix: cloneNode(deep, withoutLoc) handles absent comments (@FauxFaux)
  - #12575 Use isIdentifierChar instead of regex for toIdentifier (@mischnic)
- 🔌 babel-plugin-transform-modules-systemjs
  - #12612 [systemjs] Fix: export star alongside with named export (@shrinktofit)
- 🔌 babel-plugin-transform-for-of
  - #12611 Transform labeled for-of inside braceless if statement (@nicolo-ribaudo)
- 🔌 babel-helper-create-class-features-plugin, babel-helper-replace-supers, babel-plugin-transform-classes
  - #12544 Correctly access shadowed class binding in super.* (@Zzzen)
- 🔌 babel-helper-module-imports, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx
  - #12546 Load jsx-runtime after existing imports (@nicolo-ribaudo)
💅 :nail_care: Polish
- ✅ babel-helper-transform-fixture-test-runner, babel-parser, babel-preset-env
  - #12716 refactor: raise AwaitNotInAsyncContext when an AwaitExpression will be parsed (@JLHwung)
- 📜 babel-cli, babel-core, babel-parser
  - #12437 Recover from "missing semicolon" errors (@nicolo-ribaudo)
- 🔌 babel-helper-create-class-features-plugin, babel-plugin-proposal-private-methods
  - #12713 Add # to the private name in "write-only" errors (@nicolo-ribaudo)
- babel-helper-compilation-targets, babel-preset-env
  - #12626 fix: print warning messages to stderr (@JLHwung)
- babel-code-frame
  - #12567 fix(code-frame): do not pad gutter of empty lines (@SimenB)
📚 :memo: Documentation
- Other
  - #12698 Add " 📢 Deprecation" to the changelog labels (@nicolo-ribaudo)
- 🏗 babel-cli, babel-code-frame, babel-compat-data, babel-core, babel-generator, 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-compilation-targets, babel-helper-create-class-features-plugin, babel-helper-create-regexp-features-plugin, babel-helper-define-map, babel-helper-explode-assignable-expression, babel-helper-explode-class, babel-helper-fixtures, 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-plugin-test-runner, babel-helper-plugin-utils, babel-helper-remap-async-to-generator, babel-helper-replace-supers, babel-helper-simple-access, babel-helper-split-export-declaration, babel-helper-transform-fixture-test-runner, babel-helper-wrap-function, babel-helpers, babel-highlight, 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-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-class-static-block, 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-jsx, babel-plugin-syntax-module-string-names, babel-plugin-syntax-partial-application, babel-plugin-syntax-pipeline-operator, 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-self, babel-plugin-transform-react-jsx-source, babel-plugin-transform-react-jsx, 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-runtime-corejs2, babel-runtime, babel-standalone, babel-template, babel-traverse, babel-types
  - #12531 docs: add package-specific documentation links (@DanArthurGallagher)
:house: Internal
- babel-traverse, babel-types
  - #12296 Use native ESM for dev scripts (@karansapolia)
- babel-register
  - #12674 babel-register run default register with global module cache (@overlookmotel)
- Other
  - #12659 Add yarn-plugin-conditions to update Babel 8 dependencies (@nicolo-ribaudo)
  - #12640 test: reuse lodash library within eslint tests (@armano2)
  - #12592 Remove remaining references to lerna (@nicolo-ribaudo)
- babel-generator, babel-preset-env
  - #12670 fix: allow to execute util scripts (@armano2)
- 🔌 babel-core, babel-helper-compilation-targets, babel-plugin-transform-classes, babel-plugin-transform-function-name, babel-plugin-transform-parameters, babel-plugin-transform-regenerator, babel-preset-env
  - #12615 Tweak helper compilation targets (@JLHwung)
:microscope: Output optimization
- 🔌 babel-plugin-transform-modules-commonjs, babel-plugin-transform-template-literals, babel-plugin-transform-unicode-escapes, babel-preset-env
  - #12588 Declare template objects inline (@nicolo-ribaudo)
- 🔌 babel-plugin-transform-react-jsx
  - #12557 Optimize jsx spreads of object expressions (@bz2)