Add .NET 11 Preview 2 WPF and WinForms what's new notes

[Copilot]

Updates the WPF and WinForms what's new articles to cover .NET 11 Preview 2, adding a DWM crash resilience fix for WPF and the Preview 2 release announcement links.

Changes

WPF

• wpf/whats-new/net110.md

  • Updated title, description, H1 heading, and intro paragraph to say "WPF for .NET 11 Preview 2"
  • Added .NET 11 Preview 2 release announcement link
  • Added bug fix entry: WPF now guards against crashes caused by Desktop Window Manager (DWM) failures
  • Removed the "released in February 2026" sentence (no longer accurate as a single date)
  • Fixed pre-existing grammatical error: "some of most the" → "some of the most"
  • Updated ms.date

• wpf/whats-new/index.md

  • Updated description and section heading from "Preview 1" to "Preview 2"
  • Updated link text to "Overview of WPF on .NET 11 Preview 2"
  • Updated ms.date

WinForms

• winforms/whats-new/net110.md

  • Updated title, description, H1 heading, and intro paragraph to say "Windows Forms for .NET 11 Preview 2"
  • Added .NET 11 Preview 2 release announcement link (alongside Preview 1)
  • Updated "No updates" section to reference Preview 2
  • Removed the "released in February 2026" sentence
  • Fixed pre-existing grammatical error: "some of most the" → "some of the most"
  • Updated ms.date

• winforms/whats-new/index.md

  • Updated description and section heading from "Preview 1" to "Preview 2"
  • Updated link text to "Overview of Windows Forms on .NET 11 Preview 2"
  • Updated ms.date

Original prompt

---

This section details on the original issue you should resolve

<issue_title>.NET 11 Preview 2 Notes</issue_title>
<issue_description>### Describe the issue or suggestion

Update the WPF and WinForms what's new articles with notes about .NET 11 preview 2.</issue_description>

<agent_instructions>Start work on this. Only the WPF notes have come through so I'll have to talk to you again in the PR for the WinForms updates. Here's the change, please edit and reword it:

Guard against the Desktop Window Manager crashing and causing the WPF app to crash.
</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes .NET 11 Preview 2 Notes #2206

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Internal previews

📄 File	🔗 Preview link
dotnet-desktop-guide/winforms/whats-new/index.md	dotnet-desktop-guide/winforms/whats-new/index
dotnet-desktop-guide/winforms/whats-new/net110.md	dotnet-desktop-guide/winforms/whats-new/net110
dotnet-desktop-guide/wpf/whats-new/index.md	dotnet-desktop-guide/wpf/whats-new/index
dotnet-desktop-guide/wpf/whats-new/net110.md	dotnet-desktop-guide/wpf/whats-new/net110

[adegeo]

@copilot restore the preview text on headers and titles; we want to make it clear this is a preview release

[Copilot]

@copilot restore the preview text on headers and titles; we want to make it clear this is a preview release

Done in 0220a67. "Preview 2" is now restored in the net110.md title, description, H1 heading, and intro sentence, as well as the link text in index.md.

[adegeo]

@copilot Need to update the WinForms files to. There were no updates for Preview 2, but they at least need that info published in the same format as the normal preview notes.

[adegeo]

@copilot Need to update the WinForms files to. There were no updates for Preview 2, but they at least need that info published in the same format as the normal preview notes.

[Copilot]

@copilot Need to update the WinForms files to. There were no updates for Preview 2, but they at least need that info published in the same format as the normal preview notes.

Done in 1df43b0. Updated both WinForms files for Preview 2:

• net110.md: Updated title, description, H1, and intro to say "Preview 2"; added the Preview 2 release announcement link alongside Preview 1; updated the "No updates" section to reference Preview 2; fixed pre-existing grammar issue; updated ms.date.
• index.md: Updated description, section heading, section description, and link text to say "Preview 2"; updated ms.date.

[Copilot]

Pull request overview

This PR updates the WPF and Windows Forms “what’s new” docs to reflect .NET 11 Preview 2, including updated headings, metadata, and Preview 2 release-announcement links, plus a new WPF bug-fix note.

Changes:

• Update WPF and WinForms Preview 1 references to Preview 2 (titles, headings, descriptions, and ms.date).
• Add the .NET 11 Preview 2 release announcement link to both WPF and WinForms Preview 2 pages.
• Add a WPF bug-fix note about improved resilience to Desktop Window Manager (DWM) failures.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 10 comments.

File	Description
dotnet-desktop-guide/wpf/whats-new/net110.md	Updates content and links for .NET 11 Preview 2, and adds a new WPF bug-fix note.
dotnet-desktop-guide/wpf/whats-new/index.md	Updates the WPF “what’s new” index to point to Preview 2 content.
dotnet-desktop-guide/winforms/whats-new/net110.md	Updates WinForms Preview 2 page metadata and release-announcement links.
dotnet-desktop-guide/winforms/whats-new/index.md	Updates WinForms “what’s new” index to Preview 2, and adjusts the Preview 2 section text.