@babel/generator

Thanks @a-tarasyuk and @gausie for your first PRs!

:eyeglasses: Spec Compliance

• babel-parser

  • feat(ts): raise error for abstract property with initializer (@fedeci)

:rocket: New Feature

• babel-parser

  • Add attachComment parser option to disable comment attachment (@JLHwung)

• babel-standalone

  • standalone: update preset-stage-* (@sosukesuzuki)

  • feat: support hack pipeline in @babel/standalone (@JLHwung)

• babel-parser, babel-preset-env

  • Enable top-level await parsing by default (@nicolo-ribaudo)

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

  • Support TypeScript const enums (@nicolo-ribaudo)

• babel-plugin-transform-typescript

  • feat(typescript): implement namespace alias (@colinaaa)

• babel-core, babel-helper-create-class-features-plugin, babel-helper-module-transforms, babel-plugin-transform-modules-commonjs

  • feat: add noIncompleteNsImportDetection assumption to plugin-transform-modules-commonjs (@fedeci)

• babel-plugin-transform-react-display-name

  • Add display name after create context (@JLHwung)

• babel-parser, babel-plugin-proposal-pipeline-operator, babel-plugin-syntax-pipeline-operator

  • Hack-pipe proposal with % topic token (@js-choi)

• babel-generator, babel-parser, babel-plugin-proposal-pipeline-operator, babel-plugin-syntax-pipeline-operator, babel-traverse, babel-types

  • Add support for the "Hack" pipeline proposal (@js-choi)

• babel-plugin-transform-runtime

  • Expose @babel/eslint-parser/experimental-worker (@nicolo-ribaudo)

• babel-compat-data, babel-helper-compilation-targets, babel-preset-env

  • Add support for rhino as a compilation target (@gausie)

• babel-compat-data, babel-parser, babel-preset-env

  • Enable ergonomic brand checks (#priv in) by default (@nicolo-ribaudo)

:bug: Bug Fix

• babel-parser, babel-plugin-transform-typescript

  • [ts] support optional chain call with generic (@lala7573)

• babel-plugin-transform-typescript

  • Handle typescript function overloading in a default export (@tony-go)

• babel-parser

  • Fix %== parsing in hack pipes (@nicolo-ribaudo)

  • parser: Fix Hack/smart-pipe error positions (@js-choi)

  • fix(ts): raise error for export default interface {} (@a-tarasyuk)