Added WPF notes (#9844)

dotnet · jamesmontemagno · Apr 10, 2025 · Mar 20, 2025 · Mar 20, 2025 · Mar 27, 2025
commit e43d2dfddb7963798af4274e9a6553fa8f59ae70
@@ -1,13 +1,44 @@
 # WPF in .NET 10 Preview 3 - Release Notes
 
-Here's a summary of what's new in WPF in this preview release:
+Here's a summary of what's new with WPF in this preview release:
 
-- [Feature](#feature)
+- [Performance Improvements](#performance-improvements)
+- [Fluent Style Changes](#fluent-style-changes)
+- [Bug Fixes](#bug-fixes)
+- [Miscellaneous Changes](#miscellaneous-changes)
 
 WPF updates in .NET 10:
 
-- [What's new in WPF in .NET 10](https://learn.microsoft.com/dotnet/desktop/wpf/whats-new/net100) documentation.
+- [High-level what's new in WPF with .NET 10.](https://learn.microsoft.com/dotnet/desktop/wpf/whats-new/net100)
 
-## Feature
+## Performance Improvements
 
-Something about the feature
+Enhanced performance by optimizing cache operations, array handling, and migrating font collection loader to managed code.
+
+## Fluent Style Changes
+
+Introduced new Fluent styles for controls, such as:
+
+- `NavigationWindow`
+- `Frame`
+- `ToolBar`
+- `ResizeGrip`
+- `GroupBox`
+- `Hyperlink`
+- `GridSplitter`
+- `Thumb.`
+
+Fixed elevation border brushes for various controls and corrected missing `RecognizesAccessKey` property.
+
+## Bug Fixes
+
+- Addressed several bugs including memory leaks, control behavior anomalies, and property recognition issues.
+- Fixed faulty caching of `LinearGradientBrushes` when `RelativeTransform` was being used along with `Absolute` mapping mode.
+
+## Miscellaneous Changes
+
+Code Cleanup and Refactoring
+
+- Conducted extensive code cleanups, including syntax standardization and argument clarity, to improve code readability and maintainability.
+- Established code-coverage for WPF, added functionality tests for `Clipboard` and resolved issues with `DependencyProperty` tests.
+- Incorporated design-time markup compilation to facilitate smoother development workflows.