Roadmap Progress - Sept and October 2023 updates

[pchaurasia14]

Below are the updates on 2023 Roadmap deliverables -

Modernization

Area	Update
Managed DWrite	We are glad to announce that we were able to review and merge another long standing PR which enables DWriteForwarder migration 🎉🎉. Thank you @ThomasGoulet73 for your efforts and patience.
Win11 Theming	We have made some progress on this front. Here is the draft of the initial scope. We are working to refine this further.
New control - FolderBrowserDialog	Feature merge is completed. Sample application and tests are available as well. Feature is now available in .NET 8.
Nullability annotations	Based on community feedback, the plan for Nullability annotations support is available here. Ready for community contributions.
Hardware acceleration in RDP	Feature merge is completed for enabling hardware acceleration in RDP. This enables applications on RDP to take advantage of hardware acceleration capability (improved frames/second support, smoother animations, use of video memory, etc.) if the underlying system supports it. Our testing on sample applications which uses animations showed an improvement of 10-30% sustained frame rate when running over RDP. To enable the feature, you need to specify an appcontext switch(System.Windows.Media.IsHardwareAccelerationEnabledForRdp) in either .csproj or *.runtimeconfig.json . Do try this feature out and provide us with your feedback. Feature is now available in .NET 8.

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Infrastructure upgrades

Area	Update
Test Automation	No status change to report. We are working to add more unit tests to the project as well as fixing failing / flaky tests in the wpf-test repo.
Test Migration	Majority for feature tests and microsuites are now available in test repo (~ 80% completed) Few areas that are remaining have a higher amount on infrastructure dependency, hence we would migrate them as and when we incorporate changes to those feature areas. - 2D PR - 3D PR Number of tests are indicative of total number of tests made available (including disabled tests) You can follow our progress overall in this project.

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Issues/ PRs

Area

Update

PRs

Following PRs have been merged for September and October - 1. Fix NullReferenceException in DynamicRenderer #7552 Thanks @lindexi ! 2. Cleanup TypeConverter replacements #203 Thanks @hughbe ! 3. Added linker hint for DirectWriteForwarder #4353 Thanks @ThomasGoulet73 ! 4. Use built-in StringComparer.OrdinalIgnoreCase StringComparer #8166 Thanks @ThomasGoulet73 ! 5. Use ArgumentNullException.ThrowIfNull in PresentationUI and Themes #8194 Thanks @halgab ! 6. Use ArgumentNullException.ThrowIfNull in UIAutomation projects #8148 Thanks @halgab ! 7. Use ArgumentNullException.ThrowIfNull System.Windows.Controls.Ribbon and System.Windows.Input.Manipulations #8193 Thanks @halgab ! 8. Fix for Radio Button Behavior Across Disconnected Windows #8202 9. Closing the bitmapstream for UnknownBitMapDecoder #8174 10. Update translation state for ScrollBar_ContextMenu_Top resource #8295 11. Fix event call in OpenFolderDialog.cs #8299 Thanks @adegeo ! 12. Put Unlock method within the finally block to ensure that the Lock and Unlock methods are called in pairs #8157 Thanks @lindexi ! 13. fix: EnsureDocumentStructure typo #8321 Thanks @0o001 ! We are very grateful to all the contributors who have helped improve WPF. We are aiming to reduce the total turnaround time for issues and PRs.

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Misc

Area	Update
Accessibility improvements	No major changes to report
ARM64	Not yet started

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Going forward, our focus is primarily scoped to Win11 theming and BinaryFormatter obsoletion. Community contributions will be prioritized in these areas.

[MichelMichels]

Thanks to everyone for your contributions and hard work!