Roadmap progress - March 2023

[pchaurasia14]

Below are the updates on 2023 Roadmap deliverables -

Modernization

Area	Update
Win11 Theming	We are currently evaluating different strategies (such as introducing new abstractions similar to WinUI or only creating explicity Light, Dark and HighContrast color scheme themes that already align with existing WPF themes infrastructure) for delivering Win11 theming in effective and efficient manner. By investing the time and effort upfront, we can minimize the risk of unexpected setbacks and ensure that we are moving in the right direction. We will post our analysis soon (ETA - 4/24)
New control - FolderBrowserDialog	API proposal for FolderBrowserDialog is ready (thanks @miloush) Next, we will be getting this reviewed with dotnet team for finalization (ETA - 4/24)
Nullability annotations	- Nullability plan finalized (3/28) Meanwhile, we are working on integrating nullable annotations in System.Windows.Input.Manipulations. However this does NOT block community contributions on other assemblies

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Infrastructure upgrades

Area	Update
Test Automation	Build pipelines are already running DRTs (DRT means "developer regression tests" -- these are tests that check the basics are not broken). See example. Next up - Microsuites (a subset of feature tests) and feature tests themselves (the bulk of all WPF tests) on public build pipelines. This should help us with running automated tests for upcoming test pass runs.
Test Migration	Migration for feature tests and microsuites are in progress - Diagnostics (29 Tests) - PR - Annotations (~ 1890 tests) - PR - Globalization (13 tests) - PR - AppModel (~ 189) - in progress - Animations (~ 1800) - in progress Number of tests are indicative of total number of tests made available (including disabled tests) We're migrating feature tests and microsuites progressively, working on the most active areas first. The areas listed above are the first ones -- you can follow our progress overall in this project.

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Issues/ PRs

Area	Update
Community contributions (PRs)	Following community PRs have been merged for March - Fix typo #7669 (Thanks @Symbai) - Generated the AssemblyRecord code in AssemblyHelper to improve startup performance #7033 (Thanks @lindexi) - GlyphSerializer rounding fix #7545 (Thanks @miloush) - Include missing APIs in reference assembly #7168 (Thanks @terrajobst) - Avoid boxing in UniqueEventHelper #6510 (Thanks @stephentoub) - Generated the AssemblyRecord code in AssemblyHelper to improve startup performance #7033 (Thanks @lindexi) - Replace resource constants with properties in PresentationCore #7519 (Thanks @ThomasGoulet73) - Use project ChecksumAlgorithm in code-behind. #7556 (Thanks @ThomasGoulet73) - Replace String.CompareOrdinal to string.Equals in KnownTypes #7500 (Thanks @lindexi) - Replace Dictionary with HashSet #7486 (Thanks @ThomasGoulet73) - In ClrObjectRuntime, move the object definition next to the code used #4044 (Thanks @lindexi) Thank you all for your contributions in helping us improve WPF. We intend to continue maintaining a steady rate of 6/8 PRs on every test run.
Issues	Below are the subset of issues were addressed in March - (ToolTip ) System.ArgumentNullException: Value cannot be null. (Parameter 'element') #6319 - Tooltip throws ArgumentNullException #7002 - IOException using WPF DocumentViewer to search contents #7567 We also closed few issues which did not have proper repro samples.

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Misc

Area	Update
Accessibility improvements	Misc bug fixes in WPF sample applications. Refer this link for details.
ARM64	Not started