From 3a75f40fab92f2c90f41748375cd035aa2819d71 Mon Sep 17 00:00:00 2001
From: danroth27 <danroth27@users.noreply.github.com>
Date: Wed, 29 Apr 2026 16:50:21 -0700
Subject: [PATCH 1/2] [release-notes] WPF in .NET 11 Preview 4 (initial)

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 release-notes/11.0/preview/preview4/wpf.md | 3 +++
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+# WPF in .NET 11 Preview 4 - Release Notes
+
+_Authored content pending — agent assigned._

From 96012d1e6b4501c1dfc7c7091188b04f44b8ed1a Mon Sep 17 00:00:00 2001
From: danroth27 <danroth27@users.noreply.github.com>
Date: Wed, 29 Apr 2026 17:11:37 -0700
Subject: [PATCH 2/2] [release-notes] Author wpf.md content

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 release-notes/11.0/preview/preview4/wpf.md | 15 ++++++++++++++-
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 # WPF in .NET 11 Preview 4 - Release Notes
 
-_Authored content pending — agent assigned._
+There are no new user-facing features or improvements in WPF in this release. Most changes in the Preview 4 commit range are VMR source-code syncs, dependency flow updates from `dotnet-wpf-int`, and internal tooling (a `Microsoft.Windows.CsWin32` bump and a CodeQL SSRF suppression in `WpfWebRequestHelper`).
+
+<!-- Filtered features (significant engineering work, but too niche for release notes):
+  - WeakEventTable.Purge InvalidOperationException fix ([dotnet/wpf #11521](https://github.com/dotnet/wpf/pull/11521)): community fix from @kmaddock. Already documented in the Preview 3 release notes; suppressed here per the preview-to-preview deduplication rule.
+  - Suppress CodeQL SM03781 in WpfWebRequestHelper ([dotnet/wpf #11585](https://github.com/dotnet/wpf/pull/11585)): code-analysis annotation only, no user-visible behavior change.
+  - Update Microsoft.Windows.CsWin32 to 0.3.269 ([dotnet/wpf #11589](https://github.com/dotnet/wpf/pull/11589)): build-time dependency bump.
+  - 25 VMR source-code syncs and dependency flow PRs (e.g. #11483, #11480, #11496, #11491, #11497, #11503, #11505, #11508, #11518, #11526, #11533, #11529, #11536, #11543, #11545, #11547, #11550, #11555, #11560, #11563, #11572, #11574, #11581, #11583, #11595): repo automation, no user-facing change.
+-->
+
+## Community contributors
+
+Thank you contributors! ❤️
+
+- [@kmaddock](https://github.com/dotnet/wpf/pulls?q=is%3Apr+is%3Amerged+author%3Akmaddock)