Sourced from @babel/cli's releases.

v7.8.4 (2020年01月30日)

⚠️ In Babel 7.8.0 we introduced the --copy-ignored option for @babel/cli, defaulting to false. However, previous versions behaved as if that option was present: for this reason, we changed its default value to true (when --copy-files is provided) and introduced a --no-copy-ignored option to disable it.

Thanks to @3cp, @BenoitZugmeyer, @pustovalov, @regiontog, and @vedantroy for their first PRs!

👓 Spec Compliance

• babel-parser
  • #11031 fix: properly parse member expression after property initializer (@vedantroy)
  • #11017 Update coalesce precedence (@JLHwung)
  • #11009 fix: triple __proto__ in object patterns should be allowed (@JLHwung)
  • #10987 Duplicate __proto__ key should be allowed in object patterns (@JLHwung)

🐛 Bug Fix

• babel-cli
  • #11063 [@babel/cli] Copy ignored files by default (@nicolo-ribaudo)
• babel-compat-data
  • #11066 Fix core-js 2 builtin data for opera (@danez)
• babel-helpers, babel-plugin-proposal-class-properties, babel-plugin-proposal-decorators, babel-plugin-transform-classes, babel-plugin-transform-parameters, babel-plugin-transform-typeof-symbol, babel-preset-env
  • #11049 Avoid compiling the _typeof helper with itself (@nicolo-ribaudo)
• babel-traverse
  • #11011 Bug/missing references after crawl (@regiontog)
• babel-plugin-transform-parameters
  • #9714 Fix rest parameters indexing with TypeScript 'this parameter' (@BenoitZugmeyer)
• babel-plugin-transform-for-of
  • #11023 fix: for-of transform should skip for-await-of (@JLHwung)
• babel-generator
  • #11014 Fix parentheses removal in nullish-coalescing operation (@sidntrivedi012)
• babel-helper-compilation-targets
  • #11006 fix: supply '.' subpath for backward compatibility with node.js 13.0-13.1 (@JLHwung)

💅 Polish

• babel-core
  • #10969 polish: throw human-friendly error when item-option pair is incorrectly unwrapped (@JLHwung)

📝 Documentation

• babel-parser
  • #11015 add AST for the module attribute proposal (@xtuc)
• babel-preset-env
  • #11030 update compat-data related docs/config [skip ci] (@JLHwung)

🏠 Internal

• babel-compat-data
  • #11039 Update compat table (@nicolo-ribaudo)
  • #11041 Delete duplicated file in @babel/compat-data (@nicolo-ribaudo)
  • #10814 chore: map mobile browser data to their desktop version (@JLHwung)
  • #11024 Check that generated compat-data is up to date on CI (@nicolo-ribaudo)
• babel-parser
  • #11032 refactor: simplify toAssignable routine (@JLHwung)
  • #11026 chore: use @babel/eslint-config-internal (@JLHwung)

... (truncated)

Sourced from @babel/cli's changelog.

v7.8.4 (2020年01月30日)

⚠️ In Babel 7.8.0 we introduced the --copy-ignored option for @babel/cli, defaulting to false. However, previous versions behaved as if that option was present: for this reason, we changed its default value to true (when --copy-files is provided) and introduced a --no-copy-ignored option to disable it.

👓 Spec Compliance

• babel-parser
  • #11031 fix: properly parse member expression after property initializer (@vedantroy)
  • #11017 Update coalesce precedence (@JLHwung)
  • #11009 fix: triple __proto__ in object patterns should be allowed (@JLHwung)
  • #10987 Duplicate __proto__ key should be allowed in object patterns (@JLHwung)

🐛 Bug Fix

• babel-cli
  • #11063 [@babel/cli] Copy ignored files by default (@nicolo-ribaudo)
• babel-compat-data
  • #11066 Fix core-js 2 builtin data for opera (@danez)
• babel-helpers, babel-plugin-proposal-class-properties, babel-plugin-proposal-decorators, babel-plugin-transform-classes, babel-plugin-transform-parameters, babel-plugin-transform-typeof-symbol, babel-preset-env
  • #11049 Avoid compiling the _typeof helper with itself (@nicolo-ribaudo)
• babel-traverse
  • #11011 Bug/missing references after crawl (@regiontog)
• babel-plugin-transform-parameters
  • #9714 Fix rest parameters indexing with TypeScript 'this parameter' (@BenoitZugmeyer)
• babel-plugin-transform-for-of
  • #11023 fix: for-of transform should skip for-await-of (@JLHwung)
• babel-compat-data, babel-preset-env
  • #11016 Re-generate preset-env fixtures (@nicolo-ribaudo)
• babel-generator
  • #11014 Fix parentheses removal in nullish-coalescing operation (@sidntrivedi012)
• babel-helper-compilation-targets
  • #11006 fix: supply '.' subpath for backward compatibility with node.js 13.0-13.1 (@JLHwung)

💅 Polish

• babel-core
  • #10969 polish: throw human-friendly error when item-option pair is incorrectly unwrapped (@JLHwung)

📝 Documentation

• babel-parser
  • #11015 add AST for the module attribute proposal (@xtuc)

🏠 Internal

• babel-compat-data
  • #11039 Update compat table (@nicolo-ribaudo)
  • #11041 Delete duplicated file in @babel/compat-data (@nicolo-ribaudo)
  • #10814 chore: map mobile browser data to their desktop version (@JLHwung)
  • #11024 Check that generated compat-data is up to date on CI (@nicolo-ribaudo)
• babel-parser
  • #11032 refactor: simplify toAssignable routine (@JLHwung)
  • #11026 chore: use @babel/eslint-config-internal (@JLHwung)
• babel-preset-env
  • #11030 update compat-data related docs/config [skip ci] (@JLHwung)

... (truncated)

• 5c2e6bc v7.8.4
• 92c6807 [@babel/cli] Copy ignored files by default (#11063)
• 1528d7d Fix core-js 2 builtin data for opera (#11066)
• 3e21a09 feat: support node 6 for levenary (#11059)
• eae6211 Update compat table (#11039)
• 916429b Avoid compiling the _typeof helper with itself (#11049)
• d0518b7 Update browserslist (#11058)
• 2e5594d Update failing tests after last merged PR
• ed47d2e Delete duplicated file in @babel/compat-data (#11041)
• b54a946 chore: map mobile browser data to their desktop version (#10814)
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