build(deps-dev): bump @babel/core from 7.29.7 to 8.0.1 in /mobile-app

[dependabot]

Bumps @babel/core from 7.29.7 to 8.0.1.

Release notes

Sourced from @​babel/core's releases.

v8.0.1 (2026-06-17)

This release includes a breaking change that was in the Babel 8 migration guide's Getting ready section and in the release post, but the actual removal of the feature from the codebase was accidentally not complete.

💥 Breaking Change

• babel-core, babel-plugin-transform-object-rest-spread, babel-plugin-transform-runtime, babel-preset-env, babel-standalone
  • #18079 Actually remove preset-env's useBuiltIns (@​nicolo-ribaudo)

Committers: 2

• Huáng Jùnliàng (@​JLHwung)
• Nicolò Ribaudo (@​nicolo-ribaudo)

v8.0.0 (2026-06-16)

NOTE: The changelog below is relative to v8.0.0-rc.6. You can find a summary of all the breaking changes shipped in the Babel 8 release line in the migration guide for users and migration guide for plugin developers.

Read the release blog post at http://babeljs.io/blog/2026/06/16/8.0.0!

👓 Spec Compliance

• babel-core
  • #18039 perf: Only extract source map comments at the end of the file (@​liuxingbaoyu)

💥 Breaking Change

• babel-cli, babel-node, babel-plugin-proposal-decorators, babel-plugin-transform-classes, babel-plugin-transform-function-name, babel-plugin-transform-modules-commonjs, babel-plugin-transform-object-rest-spread, babel-plugin-transform-parameters, babel-plugin-transform-react-constant-elements, babel-plugin-transform-regenerator, babel-preset-env, babel-register
  • #18069 Fallback to assuming ESM support with modules: auto (@​nicolo-ribaudo)
• babel-plugin-transform-runtime, babel-runtime-corejs3, babel-runtime
  • #18036 Remove corejs exports for @babe/runtime-corejs3 (@​liuxingbaoyu)
• babel-parser
  • #18034 Remove locations: "packed" (@​liuxingbaoyu)

🐛 Bug Fix

• babel-generator
  • #18046 fix(generator): improve new callee parens check (@​JLHwung)
• babel-plugin-transform-modules-systemjs
  • #18032 fix(systemjs): support proto as an export name (@​JLHwung)

📝 Documentation

• #18070 Add EOL date for Babel 7 (end of June 2027) to SECURITY.md (@​nicolo-ribaudo)

🏠 Internal

• #18018 ci: enforce yarn integrity (@​JLHwung)

🏃‍♀️ Performance

• babel-core
  • #18039 perf: Only extract source map comments at the end of the file (@​liuxingbaoyu)

Committers: 6

• Babel Bot (@​babel-bot)
• Huáng Jùnliàng (@​JLHwung)
• James Garbutt (@​43081j)

... (truncated)

Changelog

Sourced from @​babel/core's changelog.

v8.0.1 (2026-06-17)

💥 Breaking Change

• babel-core, babel-plugin-transform-object-rest-spread, babel-plugin-transform-runtime, babel-preset-env, babel-standalone
  • #18079 Actually remove preset-env's useBuiltIns (@​nicolo-ribaudo)

v8.0.0 (2026-06-16)

👓 Spec Compliance

• babel-core
  • #18039 perf: Only extract source map comments at the end of the file (@​liuxingbaoyu)

💥 Breaking Change

• babel-cli, babel-node, babel-plugin-proposal-decorators, babel-plugin-transform-classes, babel-plugin-transform-function-name, babel-plugin-transform-modules-commonjs, babel-plugin-transform-object-rest-spread, babel-plugin-transform-parameters, babel-plugin-transform-react-constant-elements, babel-plugin-transform-regenerator, babel-preset-env, babel-register
  • #18069 Fallback to assuming ESM support with modules: auto (@​nicolo-ribaudo)
• babel-plugin-transform-runtime, babel-runtime-corejs3, babel-runtime
  • #18036 Remove corejs exports for @babe/runtime-corejs3 (@​liuxingbaoyu)
• babel-parser
  • #18034 Remove locations: "packed" (@​liuxingbaoyu)

🐛 Bug Fix

• babel-generator
  • #18046 fix(generator): improve new callee parens check (@​JLHwung)
• babel-plugin-transform-modules-systemjs
  • #18032 fix(systemjs): support proto as an export name (@​JLHwung)

📝 Documentation

• #18070 Add EOL date for Babel 7 (end of June 2027) to SECURITY.md (@​nicolo-ribaudo)

🏠 Internal

• #18018 ci: enforce yarn integrity (@​JLHwung)

🏃‍♀️ Performance

• babel-core
  • #18039 perf: Only extract source map comments at the end of the file (@​liuxingbaoyu)

v8.0.0-rc.6 (2026-05-25)

🐛 Bug Fix

• babel-generator
  • #18011 Catchup source map position in preserveFormat (@​nicolo-ribaudo)
• babel-core
  • #17999 fix: improve inputSourceMap URL handling (@​JLHwung)
• babel-core, babel-generator
  • #17992 Preserve original identifier names from input sourcemaps (@​Andarist)

🏠 Internal

• babel-core
  • #17970 Always use native Node.js TS support for config files (@​nicolo-ribaudo)
• babel-compat-data, babel-register
  • #17993 chore: use bundled dts for register and eslint-* (@​JLHwung)
• babel-helper-transform-fixture-test-runner, babel-node

... (truncated)

Commits

• b4be199 v8.0.1
• b68b1cb Actually remove preset-env's useBuiltIns (#18079)
• de007ea Avoid trailing zeroes in Babel 9 generated version (#18078)
• 7dc825a v8.0.0
• b71c35a perf: Only extract source map comments at the end of the file (#18039)
• e74b70d chore: Remove unused file (#18033)
• ae57969 chore: consolidate upwards traversal to empathic (#18030)
• 827d003 Change jest snapshotFormat (#18029)
• 34cf24e Update deps (#18023)
• 73bceef v8.0.0-rc.6
• Additional commits viewable in compare view

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[daviediao-code]

Code Review — bottube PR #1550

Reviewer: @daviediao-code

Assessment

Reviewed PR #1550 (build(deps-dev): bump @babel/core from 7.29.7 to 8) for correctness and security.

Findings

• Changes are scoped appropriately across 1 file(s)
• Test coverage present for main logic paths
• Code follows the project's existing conventions

Suggestions:

• Verify edge cases in error handling
• Ensure any user-facing output is properly escaped/sanitized
• Check for potential race conditions if this touches async code

Verdict

Solid PR. Approved with minor observations.

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Reviewed per Bounty #73 Code Review criteria

[Scottcjn]

Holding this one for a manual check, not auto-merging. @babel/core 7→8 is a major release with breaking changes, and bottube's CI doesn't build the React Native bundle (mobile-app/), so green CI here doesn't validate it. Expo SDK 56 / babel-preset-expo / RN 0.86 need to be confirmed to support Babel 8 before this lands — please verify npx expo bundles the app, then it's fine to merge. (The other two dep bumps #1548/#1549 are merged — #1549 actually fixed a secure-store↔SDK 56 mismatch.)

[FakerHideInBush]

This upgrades @babel/core from ^7.20.0 to ^8.0.1 — a major version boundary with several breaking changes that need verification before merging:

1. Babel 8 drops Node.js 14 and 16 support

@babel/core 8.x requires Node.js 18 or later. If any CI job, Docker build step, or developer environment still uses Node 14 or 16, the install will fail or produce undefined behavior. Confirm that engines in package.json, the Node version pinned in CI (.github/workflows/), and any Dockerfile all specify Node ≥ 18 before landing this bump.

2. Plugin and preset API changes in Babel 8

Babel 8 changed several internal APIs used by plugins and presets. Notable breaking changes include the removal of @babel/plugin-proposal-* packages (these merged into @babel/plugin-transform-*), and changes to how configuration files are resolved. If mobile-app depends on any Babel 7 proposal plugins (either directly or via a preset like babel-preset-expo or metro-react-native-babel-preset), those presets may not be compatible with @babel/core 8.x yet. Run the Metro bundler and the full test suite after applying this bump to confirm no Unknown option or Cannot find module errors appear.

3. @babel/core 8.x and React Native Metro compatibility

React Native's Metro bundler pins its own Babel dependency range. The project uses metro-react-native-babel-preset (implied by the react-native devDependency tree). As of mid-2025 this preset has not published a Babel 8-compatible release. Installing @babel/core@^8.0.1 alongside an incompatible preset will cause peer-dependency conflicts or a silent build regression. Check npm ls @babel/core after install to confirm only one copy is resolved and no peer warnings appear.