Refines **`HeaderStandard`** in `@metamask/design-system-react-native`
after review.

**Why:** Align the API and layout with feedback (exports, typing,
subtitle layout, and small cleanup).

Fixes: N/A

1. From the repo root, run React Native Storybook (`yarn storybook:ios`
or `yarn storybook:android`).
2. Open **HeaderStandard** stories: confirm title, **string** subtitle
(spacing and BodySm / alternative color), and **custom node** subtitle
behavior.
3. Exercise **back** / `onBack` / `backButtonProps` so the start icon
and `onPress` behave as expected.
4. In a small consumer snippet, verify **`import { HeaderStandard } from
'@metamask/design-system-react-native'`** builds and renders.

<!-- If applicable, add screenshots and/or recordings to visualize the
before and after of your change. -->

<!-- [screenshots/recordings] -->

<!-- [screenshots/recordings] -->

- [x] I've followed [MetaMask Contributor
Docs](https://github.com/MetaMask/contributor-docs)
- [x] I've completed the PR template to the best of my ability
- [x] I’ve included tests if applicable *(existing tests updated for
named import; run `yarn jest` scoped to this package if your team
expects it)*
- [x] I’ve documented my code using [JSDoc](https://jsdoc.app/) format
if applicable *(subtitle `ReactNode` behavior updated in types)*
- [x] I’ve applied the right labels on the PR (see [labeling
guidelines](https://github.com/MetaMask/metamask-extension/blob/develop/.github/guidelines/LABELING_GUIDELINES.md)).
Not required for external contributors.

- [ ] I've manually tested the PR (e.g. pull and build branch, run the
app, test code being changed).
- [ ] I confirm that this PR addresses all acceptance criteria described
in the ticket it closes and includes the necessary testing evidence such
as recordings and or screenshots.

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Medium Risk**
> Introduces a potentially breaking API change by replacing the default
export with a named `HeaderStandard` export and updates package
entrypoints accordingly. Also adjusts header subtitle spacing/styling
logic, which could subtly change layout for consumers passing custom
subtitle nodes or relying on trimmed class names.
>
> **Overview**
> **`HeaderStandard` is now exported as a named export** (no default
export), with `index.ts` and the package-level `components/index.ts`
updated accordingly; stories/tests were updated to import `{
HeaderStandard }`.
>
> **Subtitle rendering was refined:** string subtitles now get merged
`subtitleProps` plus a built-in `-mt-0.5` via `twClassName`, while
ReactNode subtitles render *as-is* (no wrapper/spacing), with the
behavior clarified in `HeaderStandard.types.ts`.
>
> Small cleanup: back button prop creation is more explicitly typed, and
root `twClassName` is no longer `.trim()`’d (potentially preserving
whitespace in class strings).
>
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
2b19992. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

## Release 29.0.0

This release includes new React Native header and layout primitives,
BottomSheet API updates, shared type migrations, and
documentation/runtime dependency alignment across core design-system
packages.

### 📦 Package Versions

- @metamask/design-system-shared: 0.7.0
- @metamask/design-system-react: 0.14.0
- @metamask/design-system-react-native: 0.14.0

### 🔄 Shared Type Updates (0.7.0)

#### Added

- Added shared types used by new React Native header components,
including HeaderRoot contracts consumed by
@metamask/design-system-react-native (#1029).
- Added shared BoxHorizontal and BoxVertical utility component contracts
for cross-platform layout primitives (#1003).

#### Changed

- Migrated AvatarBase type exports from enum-based definitions to shared
const-object + string-union types, aligned with ADR-0003/ADR-0004
(#1005).
- Updated @metamask/utils dependency to ^11.11.0 (#1033).

### 🌐 React Web Updates (0.14.0)

#### Changed

- BREAKING: Updated AvatarBase exports to consume shared const-object +
string-union types rather than local enums (#1005).
- No migration required for typical usage; continue importing from
@metamask/design-system-react as before.
- Runtime values remain stable while type definitions follow
ADR-0003/ADR-0004.
- Updated @metamask/utils peer dependency to ^11.11.0 (#1033).
- Expanded BannerBase migration documentation to improve upgrade
guidance for recent releases (#1011).

### 📱 React Native Updates (0.14.0)

#### Added

- Added HeaderRoot as a new root primitive for React Native header
composition (#1029).
- Added HeaderStandard for standardized title + action header layouts in
mobile screens (#1028, #1030).
- Added TextFieldSearch for search-style text input flows on mobile
(#1027).
- Added BoxHorizontal and BoxVertical utility components for directional
layout composition (#1003).

#### Changed

- BREAKING: Replaced BottomSheet shouldNavigateBack with an optional
goBack callback for explicit navigation handling in host apps (#1024).
- Remove shouldNavigateBack usage and pass goBack when sheet close
should navigate back.
- See migration guide:
packages/design-system-react-native/MIGRATION.md#from-version-0130-to-0140.
- Added panGestureHandlerProps support to BottomSheet for
gesture-handler customization (#1016).
- Migrated React Native package exports from default exports to named
exports for consistent import ergonomics (#1032).
- BREAKING: Updated AvatarBase exports to use shared const-object +
string-union types instead of local enums (#1005).
- No migration required for typical usage; continue importing from
@metamask/design-system-react-native as before.
- Runtime values remain stable while type definitions follow
ADR-0003/ADR-0004.
- Updated @metamask/utils peer dependency to ^11.11.0 (#1033).
- Expanded BannerBase migration documentation to improve upgrade
guidance for consumers (#1011).

#### Fixed

- Updated BottomSheetHeader action button size to md for consistent
sizing and visual alignment (#1012).

### ⚠️ Breaking Changes

- BottomSheet (React Native): replaced shouldNavigateBack with optional
goBack callback (#1024).
- Migration required where shouldNavigateBack was used; see
packages/design-system-react-native/MIGRATION.md#from-version-0130-to-0140.
- AvatarBase export type migration (React + React Native): moved from
local enums to shared const-object + string-union types (#1005).
- Marked breaking for type contract changes, but no migration is
expected for typical consumer imports/usage.

### ✅ Checklist

- [x] Changelogs updated with human-readable descriptions
- [x] Changelog validation passed (yarn changelog:validate)
- [x] Version bumps follow semantic versioning
- [x] design-system-shared: minor (0.6.0 to 0.7.0) - shared types and
dependency alignment
- [x] design-system-react: minor (0.13.0 to 0.14.0) - shared type
migration and docs/dependency updates
- [x] design-system-react-native: minor (0.13.0 to 0.14.0) - new
components and API enhancements
- [x] Breaking changes documented with migration guidance
- [x] Migration guides updated with before/after examples (if breaking
changes)
- [x] PR references included in changelog entries

## **Pre-merge author checklist**

- [x] I have followed MetaMask Contributor Docs
- [x] I have reviewed the Release Workflow cursor rule
- [ ] All tests pass (yarn build && yarn test && yarn lint)
- [x] Changelog validation passes (yarn changelog:validate)

## **Pre-merge reviewer checklist**

- [x] I have reviewed the Reviewing Release PRs guide
- [x] Package versions follow semantic versioning
- [x] Changelog entries are consumer-facing (not commit message
regurgitation)
- [x] Breaking changes are documented in MIGRATION.md with examples
- [x] All unreleased changes are accounted for in changelogs

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> <sup>[Cursor Bugbot](https://cursor.com/bugbot) is generating a
summary for commit 87c05a5. Configure
[here](https://www.cursor.com/dashboard/bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

## **Description**

Refines **`HeaderStandard`** in `@metamask/design-system-react-native`
after review.

**Why:** Align the API and layout with feedback (exports, typing,
subtitle layout, and small cleanup).

## **Related issues**

Fixes: N/A

## **Manual testing steps**

1. From the repo root, run React Native Storybook (`yarn storybook:ios`
or `yarn storybook:android`).
2. Open **HeaderStandard** stories: confirm title, **string** subtitle
(spacing and BodySm / alternative color), and **custom node** subtitle
behavior.
3. Exercise **back** / `onBack` / `backButtonProps` so the start icon
and `onPress` behave as expected.
4. In a small consumer snippet, verify **`import { HeaderStandard } from
'@metamask/design-system-react-native'`** builds and renders.

## **Screenshots/Recordings**

<!-- If applicable, add screenshots and/or recordings to visualize the
before and after of your change. -->

### **Before**

<!-- [screenshots/recordings] -->

### **After**

<!-- [screenshots/recordings] -->

## **Pre-merge author checklist**

- [x] I've followed [MetaMask Contributor
Docs](https://github.com/MetaMask/contributor-docs)
- [x] I've completed the PR template to the best of my ability
- [x] I’ve included tests if applicable *(existing tests updated for
named import; run `yarn jest` scoped to this package if your team
expects it)*
- [x] I’ve documented my code using [JSDoc](https://jsdoc.app/) format
if applicable *(subtitle `ReactNode` behavior updated in types)*
- [x] I’ve applied the right labels on the PR (see [labeling
guidelines](https://github.com/MetaMask/metamask-extension/blob/develop/.github/guidelines/LABELING_GUIDELINES.md)).
Not required for external contributors.

## **Pre-merge reviewer checklist**

- [ ] I've manually tested the PR (e.g. pull and build branch, run the
app, test code being changed).
- [ ] I confirm that this PR addresses all acceptance criteria described
in the ticket it closes and includes the necessary testing evidence such
as recordings and or screenshots.

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Medium Risk**
> Introduces a potentially breaking API change by replacing the default
export with a named `HeaderStandard` export and updates package
entrypoints accordingly. Also adjusts header subtitle spacing/styling
logic, which could subtly change layout for consumers passing custom
subtitle nodes or relying on trimmed class names.
> 
> **Overview**
> **`HeaderStandard` is now exported as a named export** (no default
export), with `index.ts` and the package-level `components/index.ts`
updated accordingly; stories/tests were updated to import `{
HeaderStandard }`.
> 
> **Subtitle rendering was refined:** string subtitles now get merged
`subtitleProps` plus a built-in `-mt-0.5` via `twClassName`, while
ReactNode subtitles render *as-is* (no wrapper/spacing), with the
behavior clarified in `HeaderStandard.types.ts`.
> 
> Small cleanup: back button prop creation is more explicitly typed, and
root `twClassName` is no longer `.trim()`’d (potentially preserving
whitespace in class strings).
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
2b19992. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

## Release 29.0.0

This release includes new React Native header and layout primitives,
BottomSheet API updates, shared type migrations, and
documentation/runtime dependency alignment across core design-system
packages.

### 📦 Package Versions

- @metamask/design-system-shared: 0.7.0
- @metamask/design-system-react: 0.14.0
- @metamask/design-system-react-native: 0.14.0

### 🔄 Shared Type Updates (0.7.0)

#### Added

- Added shared types used by new React Native header components,
including HeaderRoot contracts consumed by
@metamask/design-system-react-native (#1029).
- Added shared BoxHorizontal and BoxVertical utility component contracts
for cross-platform layout primitives (#1003).

#### Changed

- Migrated AvatarBase type exports from enum-based definitions to shared
const-object + string-union types, aligned with ADR-0003/ADR-0004
(#1005).
- Updated @metamask/utils dependency to ^11.11.0 (#1033).

### 🌐 React Web Updates (0.14.0)

#### Changed

- BREAKING: Updated AvatarBase exports to consume shared const-object +
string-union types rather than local enums (#1005).
- No migration required for typical usage; continue importing from
@metamask/design-system-react as before.
- Runtime values remain stable while type definitions follow
ADR-0003/ADR-0004.
- Updated @metamask/utils peer dependency to ^11.11.0 (#1033).
- Expanded BannerBase migration documentation to improve upgrade
guidance for recent releases (#1011).

### 📱 React Native Updates (0.14.0)

#### Added

- Added HeaderRoot as a new root primitive for React Native header
composition (#1029).
- Added HeaderStandard for standardized title + action header layouts in
mobile screens (#1028, #1030).
- Added TextFieldSearch for search-style text input flows on mobile
(#1027).
- Added BoxHorizontal and BoxVertical utility components for directional
layout composition (#1003).

#### Changed

- BREAKING: Replaced BottomSheet shouldNavigateBack with an optional
goBack callback for explicit navigation handling in host apps (#1024).
- Remove shouldNavigateBack usage and pass goBack when sheet close
should navigate back.
- See migration guide:
packages/design-system-react-native/MIGRATION.md#from-version-0130-to-0140.
- Added panGestureHandlerProps support to BottomSheet for
gesture-handler customization (#1016).
- Migrated React Native package exports from default exports to named
exports for consistent import ergonomics (#1032).
- BREAKING: Updated AvatarBase exports to use shared const-object +
string-union types instead of local enums (#1005).
- No migration required for typical usage; continue importing from
@metamask/design-system-react-native as before.
- Runtime values remain stable while type definitions follow
ADR-0003/ADR-0004.
- Updated @metamask/utils peer dependency to ^11.11.0 (#1033).
- Expanded BannerBase migration documentation to improve upgrade
guidance for consumers (#1011).

#### Fixed

- Updated BottomSheetHeader action button size to md for consistent
sizing and visual alignment (#1012).

### ⚠️ Breaking Changes

- BottomSheet (React Native): replaced shouldNavigateBack with optional
goBack callback (#1024).
- Migration required where shouldNavigateBack was used; see
packages/design-system-react-native/MIGRATION.md#from-version-0130-to-0140.
- AvatarBase export type migration (React + React Native): moved from
local enums to shared const-object + string-union types (#1005).
- Marked breaking for type contract changes, but no migration is
expected for typical consumer imports/usage.

### ✅ Checklist

- [x] Changelogs updated with human-readable descriptions
- [x] Changelog validation passed (yarn changelog:validate)
- [x] Version bumps follow semantic versioning
- [x] design-system-shared: minor (0.6.0 to 0.7.0) - shared types and
dependency alignment
- [x] design-system-react: minor (0.13.0 to 0.14.0) - shared type
migration and docs/dependency updates
- [x] design-system-react-native: minor (0.13.0 to 0.14.0) - new
components and API enhancements
- [x] Breaking changes documented with migration guidance
- [x] Migration guides updated with before/after examples (if breaking
changes)
- [x] PR references included in changelog entries

## **Pre-merge author checklist**

- [x] I have followed MetaMask Contributor Docs
- [x] I have reviewed the Release Workflow cursor rule
- [ ] All tests pass (yarn build && yarn test && yarn lint)
- [x] Changelog validation passes (yarn changelog:validate)

## **Pre-merge reviewer checklist**

- [x] I have reviewed the Reviewing Release PRs guide
- [x] Package versions follow semantic versioning
- [x] Changelog entries are consumer-facing (not commit message
regurgitation)
- [x] Breaking changes are documented in MIGRATION.md with examples
- [x] All unreleased changes are accounted for in changelogs

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> <sup>[Cursor Bugbot](https://cursor.com/bugbot) is generating a
summary for commit 87c05a5. Configure
[here](https://www.cursor.com/dashboard/bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

## **Description**

Refines **`HeaderStandard`** in `@metamask/design-system-react-native`
after review.

**Why:** Align the API and layout with feedback (exports, typing,
subtitle layout, and small cleanup).

## **Related issues**

Fixes: N/A

## **Manual testing steps**

1. From the repo root, run React Native Storybook (`yarn storybook:ios`
or `yarn storybook:android`).
2. Open **HeaderStandard** stories: confirm title, **string** subtitle
(spacing and BodySm / alternative color), and **custom node** subtitle
behavior.
3. Exercise **back** / `onBack` / `backButtonProps` so the start icon
and `onPress` behave as expected.
4. In a small consumer snippet, verify **`import { HeaderStandard } from
'@metamask/design-system-react-native'`** builds and renders.

## **Screenshots/Recordings**

<!-- If applicable, add screenshots and/or recordings to visualize the
before and after of your change. -->

### **Before**

<!-- [screenshots/recordings] -->

### **After**

<!-- [screenshots/recordings] -->

## **Pre-merge author checklist**

- [x] I've followed [MetaMask Contributor
Docs](https://github.com/MetaMask/contributor-docs)
- [x] I've completed the PR template to the best of my ability
- [x] I’ve included tests if applicable *(existing tests updated for
named import; run `yarn jest` scoped to this package if your team
expects it)*
- [x] I’ve documented my code using [JSDoc](https://jsdoc.app/) format
if applicable *(subtitle `ReactNode` behavior updated in types)*
- [x] I’ve applied the right labels on the PR (see [labeling
guidelines](https://github.com/MetaMask/metamask-extension/blob/develop/.github/guidelines/LABELING_GUIDELINES.md)).
Not required for external contributors.

## **Pre-merge reviewer checklist**

- [ ] I've manually tested the PR (e.g. pull and build branch, run the
app, test code being changed).
- [ ] I confirm that this PR addresses all acceptance criteria described
in the ticket it closes and includes the necessary testing evidence such
as recordings and or screenshots.

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Medium Risk**
> Introduces a potentially breaking API change by replacing the default
export with a named `HeaderStandard` export and updates package
entrypoints accordingly. Also adjusts header subtitle spacing/styling
logic, which could subtly change layout for consumers passing custom
subtitle nodes or relying on trimmed class names.
> 
> **Overview**
> **`HeaderStandard` is now exported as a named export** (no default
export), with `index.ts` and the package-level `components/index.ts`
updated accordingly; stories/tests were updated to import `{
HeaderStandard }`.
> 
> **Subtitle rendering was refined:** string subtitles now get merged
`subtitleProps` plus a built-in `-mt-0.5` via `twClassName`, while
ReactNode subtitles render *as-is* (no wrapper/spacing), with the
behavior clarified in `HeaderStandard.types.ts`.
> 
> Small cleanup: back button prop creation is more explicitly typed, and
root `twClassName` is no longer `.trim()`’d (potentially preserving
whitespace in class strings).
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
2b19992. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

## Release 29.0.0

This release includes new React Native header and layout primitives,
BottomSheet API updates, shared type migrations, and
documentation/runtime dependency alignment across core design-system
packages.

### 📦 Package Versions

- @metamask/design-system-shared: 0.7.0
- @metamask/design-system-react: 0.14.0
- @metamask/design-system-react-native: 0.14.0

### 🔄 Shared Type Updates (0.7.0)

#### Added

- Added shared types used by new React Native header components,
including HeaderRoot contracts consumed by
@metamask/design-system-react-native (#1029).
- Added shared BoxHorizontal and BoxVertical utility component contracts
for cross-platform layout primitives (#1003).

#### Changed

- Migrated AvatarBase type exports from enum-based definitions to shared
const-object + string-union types, aligned with ADR-0003/ADR-0004
(#1005).
- Updated @metamask/utils dependency to ^11.11.0 (#1033).

### 🌐 React Web Updates (0.14.0)

#### Changed

- BREAKING: Updated AvatarBase exports to consume shared const-object +
string-union types rather than local enums (#1005).
- No migration required for typical usage; continue importing from
@metamask/design-system-react as before.
- Runtime values remain stable while type definitions follow
ADR-0003/ADR-0004.
- Updated @metamask/utils peer dependency to ^11.11.0 (#1033).
- Expanded BannerBase migration documentation to improve upgrade
guidance for recent releases (#1011).

### 📱 React Native Updates (0.14.0)

#### Added

- Added HeaderRoot as a new root primitive for React Native header
composition (#1029).
- Added HeaderStandard for standardized title + action header layouts in
mobile screens (#1028, #1030).
- Added TextFieldSearch for search-style text input flows on mobile
(#1027).
- Added BoxHorizontal and BoxVertical utility components for directional
layout composition (#1003).

#### Changed

- BREAKING: Replaced BottomSheet shouldNavigateBack with an optional
goBack callback for explicit navigation handling in host apps (#1024).
- Remove shouldNavigateBack usage and pass goBack when sheet close
should navigate back.
- See migration guide:
packages/design-system-react-native/MIGRATION.md#from-version-0130-to-0140.
- Added panGestureHandlerProps support to BottomSheet for
gesture-handler customization (#1016).
- Migrated React Native package exports from default exports to named
exports for consistent import ergonomics (#1032).
- BREAKING: Updated AvatarBase exports to use shared const-object +
string-union types instead of local enums (#1005).
- No migration required for typical usage; continue importing from
@metamask/design-system-react-native as before.
- Runtime values remain stable while type definitions follow
ADR-0003/ADR-0004.
- Updated @metamask/utils peer dependency to ^11.11.0 (#1033).
- Expanded BannerBase migration documentation to improve upgrade
guidance for consumers (#1011).

#### Fixed

- Updated BottomSheetHeader action button size to md for consistent
sizing and visual alignment (#1012).

### ⚠️ Breaking Changes

- BottomSheet (React Native): replaced shouldNavigateBack with optional
goBack callback (#1024).
- Migration required where shouldNavigateBack was used; see
packages/design-system-react-native/MIGRATION.md#from-version-0130-to-0140.
- AvatarBase export type migration (React + React Native): moved from
local enums to shared const-object + string-union types (#1005).
- Marked breaking for type contract changes, but no migration is
expected for typical consumer imports/usage.

### ✅ Checklist

- [x] Changelogs updated with human-readable descriptions
- [x] Changelog validation passed (yarn changelog:validate)
- [x] Version bumps follow semantic versioning
- [x] design-system-shared: minor (0.6.0 to 0.7.0) - shared types and
dependency alignment
- [x] design-system-react: minor (0.13.0 to 0.14.0) - shared type
migration and docs/dependency updates
- [x] design-system-react-native: minor (0.13.0 to 0.14.0) - new
components and API enhancements
- [x] Breaking changes documented with migration guidance
- [x] Migration guides updated with before/after examples (if breaking
changes)
- [x] PR references included in changelog entries

## **Pre-merge author checklist**

- [x] I have followed MetaMask Contributor Docs
- [x] I have reviewed the Release Workflow cursor rule
- [ ] All tests pass (yarn build && yarn test && yarn lint)
- [x] Changelog validation passes (yarn changelog:validate)

## **Pre-merge reviewer checklist**

- [x] I have reviewed the Reviewing Release PRs guide
- [x] Package versions follow semantic versioning
- [x] Changelog entries are consumer-facing (not commit message
regurgitation)
- [x] Breaking changes are documented in MIGRATION.md with examples
- [x] All unreleased changes are accounted for in changelogs

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> <sup>[Cursor Bugbot](https://cursor.com/bugbot) is generating a
summary for commit 87c05a5. Configure
[here](https://www.cursor.com/dashboard/bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

## Release 29.0.0

This release includes new React Native header and layout primitives,
BottomSheet API updates, shared type migrations, and
documentation/runtime dependency alignment across core design-system
packages.

### 📦 Package Versions

- @metamask/design-system-shared: 0.7.0
- @metamask/design-system-react: 0.14.0
- @metamask/design-system-react-native: 0.14.0

### 🔄 Shared Type Updates (0.7.0)

#### Added

- Added shared types used by new React Native header components,
including HeaderRoot contracts consumed by
@metamask/design-system-react-native (#1029).
- Added shared BoxHorizontal and BoxVertical utility component contracts
for cross-platform layout primitives (#1003).

#### Changed

- Migrated AvatarBase type exports from enum-based definitions to shared
const-object + string-union types, aligned with ADR-0003/ADR-0004
(#1005).
- Updated @metamask/utils dependency to ^11.11.0 (#1033).

### 🌐 React Web Updates (0.14.0)

#### Changed

- BREAKING: Updated AvatarBase exports to consume shared const-object +
string-union types rather than local enums (#1005).
- No migration required for typical usage; continue importing from
@metamask/design-system-react as before.
- Runtime values remain stable while type definitions follow
ADR-0003/ADR-0004.
- Updated @metamask/utils peer dependency to ^11.11.0 (#1033).
- Expanded BannerBase migration documentation to improve upgrade
guidance for recent releases (#1011).

### 📱 React Native Updates (0.14.0)

#### Added

- Added HeaderRoot as a new root primitive for React Native header
composition (#1029).
- Added HeaderStandard for standardized title + action header layouts in
mobile screens (#1028, #1030).
- Added TextFieldSearch for search-style text input flows on mobile
(#1027).
- Added BoxHorizontal and BoxVertical utility components for directional
layout composition (#1003).

#### Changed

- BREAKING: Replaced BottomSheet shouldNavigateBack with an optional
goBack callback for explicit navigation handling in host apps (#1024).
- Remove shouldNavigateBack usage and pass goBack when sheet close
should navigate back.
- See migration guide:
packages/design-system-react-native/MIGRATION.md#from-version-0130-to-0140.
- Added panGestureHandlerProps support to BottomSheet for
gesture-handler customization (#1016).
- Migrated React Native package exports from default exports to named
exports for consistent import ergonomics (#1032).
- BREAKING: Updated AvatarBase exports to use shared const-object +
string-union types instead of local enums (#1005).
- No migration required for typical usage; continue importing from
@metamask/design-system-react-native as before.
- Runtime values remain stable while type definitions follow
ADR-0003/ADR-0004.
- Updated @metamask/utils peer dependency to ^11.11.0 (#1033).
- Expanded BannerBase migration documentation to improve upgrade
guidance for consumers (#1011).

#### Fixed

- Updated BottomSheetHeader action button size to md for consistent
sizing and visual alignment (#1012).

### ⚠️ Breaking Changes

- BottomSheet (React Native): replaced shouldNavigateBack with optional
goBack callback (#1024).
- Migration required where shouldNavigateBack was used; see
packages/design-system-react-native/MIGRATION.md#from-version-0130-to-0140.
- AvatarBase export type migration (React + React Native): moved from
local enums to shared const-object + string-union types (#1005).
- Marked breaking for type contract changes, but no migration is
expected for typical consumer imports/usage.

### ✅ Checklist

- [x] Changelogs updated with human-readable descriptions
- [x] Changelog validation passed (yarn changelog:validate)
- [x] Version bumps follow semantic versioning
- [x] design-system-shared: minor (0.6.0 to 0.7.0) - shared types and
dependency alignment
- [x] design-system-react: minor (0.13.0 to 0.14.0) - shared type
migration and docs/dependency updates
- [x] design-system-react-native: minor (0.13.0 to 0.14.0) - new
components and API enhancements
- [x] Breaking changes documented with migration guidance
- [x] Migration guides updated with before/after examples (if breaking
changes)
- [x] PR references included in changelog entries

## **Pre-merge author checklist**

- [x] I have followed MetaMask Contributor Docs
- [x] I have reviewed the Release Workflow cursor rule
- [ ] All tests pass (yarn build && yarn test && yarn lint)
- [x] Changelog validation passes (yarn changelog:validate)

## **Pre-merge reviewer checklist**

- [x] I have reviewed the Reviewing Release PRs guide
- [x] Package versions follow semantic versioning
- [x] Changelog entries are consumer-facing (not commit message
regurgitation)
- [x] Breaking changes are documented in MIGRATION.md with examples
- [x] All unreleased changes are accounted for in changelogs

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