@babel/runtime-corejs2

Thanks @chrishinrichs, @khoumani, @m-ahmadi, @BBlackwo, @SakibulMowla, @4geru, @Shriram-Balaji, @ZYSzys and @arku for their first PRs!

:bug: Bug Fix

• babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime

  • Add support for native esm to @babel/runtime. (@nicolo-ribaudo)

• babel-preset-env

  • Update preset-env mappings. (@existentialism)

• babel-parser

  • Flow enums: fix enum body location. (@gkz)

  • Fix some incorrect typeof parsing in flow. (@existentialism)

  • [parser] Allow optional async methods. (@gonzarodriguezt)

  • register import equals specifier. (@JLHwung)

  • Allow TypeScript type assertions in array destructuring. (@SakibulMowla)

• babel-preset-env-standalone

  • fix: add missing available plugins to babel-preset-env-standalone. (@JLHwung)

• babel-plugin-transform-function-name, babel-plugin-transform-modules-umd, babel-preset-env

  • Circumvent typeof transform for umd build template. (@JLHwung)

• babel-cli

  • Babel should not silently remove unknown options after commander arguments. (@JLHwung)

• babel-plugin-proposal-optional-chaining

  • Fix optional method chaining in derived classes. (@Shriram-Balaji)

• babel-parser, babel-types

  • Add asserts this [is type] parsing support. (@JLHwung)

• babel-traverse

  • Fix parentheses on replaceWithMultiple for JSX. (@khoumani)

• babel-helpers, babel-plugin-proposal-object-rest-spread, babel-preset-env

  • Fix: Don't call Object.keys on non-objects (babel#10482). (@chrishinrichs)

:nail_care: Polish

• babel-plugin-proposal-nullish-coalescing-operator

  • polish: skip creating extra reference for safely re-used node. (@JLHwung)

:house: Internal

• Other

  • Removed duplicate key in package.json. (@rajasekarm)

  • chore: use loose mode of transform. (@JLHwung)

  • Implement PR workflow for running test262 on babel PRs. (@jbhoosreddy)

  • bump @babel/* dev dependencies. (@JLHwung)

  • E2E test Babel with itself before publishing. (@nicolo-ribaudo)

• babel-core

  • Reduce standalone build size. (@JLHwung)

• babel-plugin-transform-literals, babel-preset-env-standalone

  • fix typo [ci-skip]. (@JLHwung)

• babel-cli

  • Add missing flow type to babel-cli for consistency. (@ZYSzys)