C#: Add change note.

michaelnebel · michaelnebel · commit f9559060f1f3 · 2025-05-14T10:37:28.000+02:00
diff --git a/csharp/ql/lib/change-notes/2025-05-14-dotnet-models.md b/csharp/ql/lib/change-notes/2025-05-14-dotnet-models.md
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+---
+category: minorAnalysis
+---
+* The generated Models as Data (MaD) models for .NET 9 Runtime have been updated and are now more precise (due to a recent model generator improvement).

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 +---
 +category: minorAnalysis
 +---
 +* The generated Models as Data (MaD) models for .NET 9 Runtime have been updated and are now more precise (due to a recent model generator improvement).