@babel/code-frame

Thanks @vitorveiga for your first PR!

:eyeglasses: Spec Compliance

• babel-parser

  • Disallow non octal decimal escape before use strict (@JLHwung)

:bug: Bug Fix

• babel-plugin-transform-block-scoping

  • fix: handle block-level function declaration (#10046) (@vitorveiga)

• babel-helper-builder-react-jsx-experimental, babel-plugin-transform-react-jsx-development, babel-plugin-transform-react-jsx

  • Lazily inject imports to the JSX runtime (@nicolo-ribaudo)

• babel-helper-builder-react-jsx-experimental, babel-preset-react

  • Fixed issue with skipping over self & source generated by another instance (@Andarist)

• babel-preset-env

  • Add js extension to preset-env generated polyfill imports (@JLHwung)

• babel-helper-builder-react-jsx-experimental, babel-plugin-transform-react-jsx

  • Setup JSX runtime even if the file doesn't contain JSX (@nicolo-ribaudo)

• babel-helper-builder-react-jsx-experimental, babel-plugin-transform-react-jsx-development, babel-preset-react

  • Fixed a regression for multiple __self & __source props with classic runtime (@Andarist)

:house: Internal

• babel-types

  • Improve AST node definitions in @babel/types (@zxbodya)

• Other

  • chore: always check yarn lock and dedupe during update (@JLHwung)

  • Avoid force trailing comma on test files (@JLHwung)

  • Run e2e tests also with BABEL_8_BREAKING (@nicolo-ribaudo)

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

  • Reorganize some JSX-related tests (@Andarist)

• babel-standalone, babel-types

  • Move some build steps to gulp (@JLHwung)