Add .NET 11 Preview 6 what's new highlights

[jfversluis]

Summary

• Updates the .NET 11 What's new page date and adds the Preview 6 release-note link.
• Adds concise Preview 6 highlights for HybridWebView AOT/full-trimming support, Android MediaPicker recovery, geolocation updates, Windows CollectionView2, Android Shell handlers, compatibility package removal, Windows layout accessibility, and permissions testability.

Verification

• Checked markdown code-fence and moniker balance.
• Ran git diff --check -- docs/whats-new/dotnet-11.md.

Upstream MAUI PRs used for verification

• [AOT] Make HybridWebView AOT safe using source generator maui#35626 — HybridWebView source-generated JS-to-.NET invocation.
• Fix Android MediaPicker result recovery maui#35455 — Android MediaPicker result recovery APIs.
• Add geolocation listening minimum distance maui#35784 — Geolocation listening minimum distance.
• [Essentials] Use mean sea level altitude on Android API 34+ maui#35097 — Android API 34+ mean sea level/geoid altitude behavior.
• [WinUI][CV2] CollectionView2 Handler Implementation for Windows maui#34600 — Windows CollectionView2 handler default and opt-out.
• [net11.0][Android] Implement handler based Shell architecture replacing legacy renderers maui#34758 — Android handler-based Shell architecture.
• Remove MAUI compatibility package maui#35870 — Optional Microsoft.Maui.Controls.Compatibility package removal.
• [Windows][net11] Make Layout AutomationPeer public + opt-in for screen reader tree maui#35597 — Windows layout automation peer and accessibility behavior.
• Make Permissions API testable maui#35987 — IPermissions/Permissions.Current testability surface.

---

Internal previews

📄 File	🔗 Preview link
docs/whats-new/dotnet-11.md	docs/whats-new/dotnet-11

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

[learn-build-service-prod]

Learn Build status updates of commit b60706b:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/whats-new/dotnet-11.md	✅Succeeded	View (>=net-maui-8.0)

For more details, please refer to the build report.

[Copilot]

Pull request overview

Updates the .NET MAUI “What’s new in .NET 11” page to reflect .NET 11 Preview 6, adding the Preview 6 release-notes link and documenting a set of new/changed behaviors and APIs.

Changes:

• Updated ms.date and added the Preview 6 release-notes link.
• Added Preview 6 highlights covering HybridWebView trimming/AOT support, Windows CollectionView2 default handler behavior, Android Shell handler architecture, compatibility package removal, Windows layout accessibility automation peers, Android MediaPicker result recovery, geolocation updates, and permissions testability (IPermissions / Permissions.Current).

Show a summary per file

File	Description
docs/whats-new/dotnet-11.md	Refreshes page metadata and adds Preview 6 highlights and the Preview 6 release-notes link.

Copilot's findings

• Files reviewed: 1/1 changed files
• Comments generated: 1

[learn-build-service-prod]

Learn Build status updates of commit 8450c31:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/whats-new/dotnet-11.md	✅Succeeded	View (>=net-maui-8.0)

For more details, please refer to the build report.

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

[learn-build-service-prod]

Learn Build status updates of commit fc5e1ca:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/whats-new/dotnet-11.md	✅Succeeded	View (>=net-maui-8.0)

For more details, please refer to the build report.

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

[learn-build-service-prod]

Learn Build status updates of commit 0da5b40:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/whats-new/dotnet-11.md	✅Succeeded	View (>=net-maui-8.0)

For more details, please refer to the build report.

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

[learn-build-service-prod]

Learn Build status updates of commit 8fe2f23:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/whats-new/dotnet-11.md	✅Succeeded	View (>=net-maui-8.0)

For more details, please refer to the build report.