4.8.15

We're excited to announce our second release for 2023, which includes over 200 fixes and product improvements, as well as support for .NET 8 Preview 2.

As promised, we've been hard at work on the improvements you requested in our 2023 Roadmap survey. One of the top requests was to make the startup experience with Uno Platform as seamless as possible. In response, we've introduced a new startup experience designed to make setting up new projects with Uno Platform easier and more flexible than ever before. The Uno Platform Templates wizard will guide you through setting up your project, allowing you to choose as many or as few pieces of Uno Platform as you desire. So, starting a new Uno Platform project is easier than ever moving forward!

As with every release we also spent significant effort in improving performance across all supported platforms. In addition to multiple in-memory and runtime performance improvements we are introducing OpenGL acceleration for Uno Islands, which are typically used in WPF modernization scenarios, showing 12x improvement over software rendering. In addition, TextBlock rendering for all Skia backends, showing 5x improvements in common scenarios.

Here are some additional noteworthy improvements:

• ThemeShadow for iOS/Catalyst/Android
• Shadows on Skia targets
• Performance and memory improvements
  • Memory improvement in XAML SourceGenerator
  • Runtime performance and memory improvement in DependencyObject
  • Memory improvements in ItemsControl and ContentControl
• GTK+Linux fixes for Ubuntu 23.04+ and Arch distributions

As always, a big shoutout to everyone who worked closely with our core contributor team to make this release possible:

• Reliability fixes by @morning4coffe-dev
• Documentation updates by @morning4coffe-dev, @mrlacey
• Localization fixes by @igiona
• Build updates by @workgroupengineering
• VS Code updates by @kojo12228
• Skia Shadows support by @VitezslavImrysek
• Libinput fixes by @microhobby
• Wasm fix by @mmarinchenko

Head to our blog post for additional details on this release!

---

Full Changelog

Features

• Support for more Font properties in Skia Overlay TextBox e6976b1
• renderTargetBitmap: [Skia] Add ability to use RenderTargetBitmap as Image.Source bfe33b7
• Add feature flag for the layout cycle fix da44634
• Add support for PropertySet, StringMap and ValueSet ed99e14
• Add support for Scale property in CornerRadiusFilterConverter 089f344
• Add support for ToolTip in Uno Islands 4b1328d
• Add support for WPF OpenGL acceleration 5790368
• Added support for shadows on SkiaSharp a7647ff
• Basic implementation for HttpRequestMessage d032b36
• Bump templates to use net7.0 by default adbc6a6
• Bump UWPSyncGenerator version e39864e
• Enable XAML Trimming by default 1a998ff
• restore media player tests for winui 1f8ebfa
• Support CameraCaptureUIMode.Video on Android 40ceeda
• ThemeShadow support on Android bfaca1f
• ThemeShadow support on iOS/macOS adfc824
• Vector3 XAML conversion 54d65c5
• Lamp: Support setting Brightness on Android 13 and later dd04f75
• mediaplayer: Enable for WinUI, update to WinAppSDK 1.2 a1f25d5
• xamlgen: Add support for debugging information, refactor BaseUri location fb3a55e
• xamlparser: Adjust support for relative Uri parsing to enable contextual image loading 8b4c228

Performance Improvements

• TextBox: Avoid unnecessary allocations 2e9cec7
• Avoid calling ToString twice on the same StringBuilder c77884d
• Avoid unnecessary TrimEnd call da8e8a4
• DependencyObjectAvailabilityGenerator: Avoid calculating property names twice 60be919
• Avoid holding into symbols 94cbbfe
• avoid intermediate calls for Colors.FromInteger 7029a8b
• Avoid unnecessary ToDisplayString 9d8abb9
• Avoid using GetAllTypesAttributedWith eed1949
• Don't allocate DependencyPropertyCallbackManager on disposal daf8cd3
• Faster symbol lookup e065b53
• Optimize LOH string allocations in Xaml generator 8d161db
• do: Reduce CallbackManager allocations when no callbacks are registered 9aa78b5
• dp: Reduce property search allocations 30fa159
• Improve xaml generator performance cfe3418
• Reduce allocations during inherited properties propagation b4e9159
• Remove DisplayClass in DependencyProperty.GetMetadata() 168f528
• remove reflection usage when parsing color names 89bda71
• memory: Fix datacontext propagation on precedence level change 4f7300a
• Remove string allocations from method Colors.FromArbg 5f28dde
• WindowManager: Add SetPropertyNativeFast binding b080921

BREAKING CHANGES

• winappsdk: This PR removes unavailable types and members from the WinUI variant of Uno. Those members were present in early versions of WinAppSDK, and are not implemented in Uno.
• assets: The ms-appx:/// specifier for libraries introduced in Uno Platform 4.6 was incorrectly lower-casing the library name. This change now uses the original name used by the library, which is the AssemblyName property of the library hosting the assets.

Bug Fixes

• Add missing CSS class for GTK TextBoxView 3cfdafd
• Avoid setting intial PasswordRevealState for plain TextBox 9344aed
• AdaptiveTrigger: AdaptiveTriggers precedence 05041e2
• android: Rely on actual string comparison and not string reference 0d74cb3
• ItemsControl: ContentControl at the DataTemplate root should keep bindings 6542c27
• ItemsControl: Don't clear content on IsContainerFromTemplateRoot 7c9c6c2
• ItemsControl: Ensure Content property is cleared when is not own container e9b3372
• listView: Fix add/remove not able to re-use container 4e978a6
• pointers: Pointers are not bubbling through list view on iOS f111ba3
• targetBitmap: RenderTargetBitmap cannot be re-rendered on canvas on iOS and macOS 5298e1d
• xamlreader: Ensure adding properties on an explicit property reports an error 83e5279
• XamlReader: Apply static resources before evaluating element names 3481229
• XamlReader: parsing of Rect type property f6adcb5
• Add missing PRIResource in default library template 0068ec5
• Add missing PRIResource in default template e8c03c2
• Adjust support for single-instance generator 864a27e
• Correctly default to "all files" in WPF FileOpenPicker 783c7b8
• enable feature only for Android c9fccbe
• Enable support for ContentDialog in Uno Islands 693c244
• Failing Lamp PR 283bdd1
• Fallback to fuzzy matching properly d9f53df
• Fix case sensitivity of FontWeight 0beeb75
• Fix ObjectDisposedException crash in Geolocator on Android 2af054e
• Fix possible collection changed while enumerating in EVP propagation 5bc413a
• Fix x:Bind code generation for statics 21d59b4
• Fix XamlType lookup to correctly consider PreferredXamlNamespace 2b5fba8
• GetCulturesHierarchy loop on invalid CultureInfo d3942bb
• GTK TextBox selection 5efdac4
• Handle UnoXamlHostBase end of app lifecycle gracefully 6a3b198
• Properly check Lamp support f6d08bd
• CameraCaptureUI: Fix crash on net6.0+ 239cc51
• midi: Tentative for android recursion issue 643c498
• tooltip: Adjust initial propagation of the DataContext 55c9d48
• Add workaround for net7.0-android issue 2c8f90e
• Address review 2a5c571
• Avoid processing GTK events before dispatching 293c310
• Avoid text modification after TextChanged is raised f5729d9, closes #6289
• better comments e3d9e47
• bump minimum macOS version for SampleApp c506cde
• Disallow ComboBox popup under translucent status bar 391ae8e
• Don't set UnoRemoteControlHost when running inside VS Windows 9851312
• Ensure TextChanging is raised repeatedly when TextChanged handler modifies 7e4775c
• Include System.Memory fix for Xamarin.iOS projects e203684
• Position the AutoSuggestBox popup while taking the keyboard into account e1fbbe1
• refresh Panel layout when size changes db521c7
• Remove GuardBand on GTK HW renderers to avoid visual glitches around clipping b748563
• Show an actionable error message on SDK mismatch ce24b5a
• Use culture invariant float parsing 019bd9d
• android: Ensure that DependencyObject.Parent is set when adding a control to its parent 5126310
• appxaml: Adjust ability for arbitrary app class name bf06dd5
• Binding: Adjust binding to indexer based on expression parameter 38e63af
• ContentPresenter: Reset DataContext override on null Content 1e66781
• deque: Fix memory leak on clear 2dda57b
• gtk: Ensure that harfbuzz is eagerly loaded to avoid system versions interference 84b3ad6
• ios: LVI layouting 16293bb
• ItemsControl: Ensure containers are properly cleaned up in ItemsControl and ListView 528c4a1
• ListView: ios lv snap rubber-banding e0b48e1
• localization: avoid using deprecated property 94159ac
• skia: Correctly handle SolidColorBrush opacity in inlines 8b05a85
• templates: Update Microsoft.WindowsAppSDK in templates e3bb671
• templates: Use UTF8 for template files a802808
• VirtualizingPanel: Adjust for nullability constraints ac0858d
• XamlGenerator: Ignore surrounding whitespace for LineBreak 0ddd93b
• xamlhost: Ensure proper render surface initialization 0405a16
• RecordAllTestsCommand 4f12c88
• Remove DependenciesInitializer 37f8dbd
• Restore ElevatedView support for WinAppSDK 1e1a003
• Show error message when incompatible winappsdk to net7.0 with uno is found b0d55de
• XamlReader: Ignore surrounding whitespace for LineBreak 2b40f26
• restore midi enumeration sample 0f7e275
• xaml: Ensure generator indempotence dcafe81
• skia.gtk launch config to use .NET 7 f787bd4
• wasm debug launch config to use chrome type 9a3ff9e
• **a...

4.7.37

This is a service release for Uno 4.7, which includes fixes such as:

• Updated migration steps for 4.6 and 4.7 (backport #11077)
• .NET 7 Android AOT Fixes (backport #11063)
• Templates adjustments with :
  • The introduction of App.cs and AppResources.xaml to give access to the class library (#11085)
  • Linux build fixes (#11078)
  • Intellisense fixes for VS 2022 (#11078)
  • Temporarily disabled AppKit template until upstream support is fixed (#11116)
• Fixed transitive assets not included in dotnet publish output (backport #11057)
• Single project targeting optimization documentation (#11126)

Full Changelog: 4.7.30...4.7.37

4.7.30

Our first release of 2023 is ready and brings over 230 new features and bug fixes, most notably introducing a new project template, improving performance across all platforms supported by Uno Platform and Shared Fonts.

Here are some highlights of the release:

• An updated project template which uses a Class Library instead of a "Shared Project"
• Support for Shared Fonts assets, which is removing platform specific steps
• Support for ms-appx:/// Uris Images in library assets
• Support for AppointmentStore (Android) by @pkar70
• XAML Trimming improvements (e.g. 33% in the Calculator app)
• Support for ISelectionRange
• .NET 7 performance improvements with JSImport/JSExport
• Markup extension in Style Setter
• Readonly TextBox selection support
• .NET Native AOT support for the Skia GTK and Framebuffer heads
• Framebuffer fixes for 32 bits depths
• Android interop performance improvements

More details can be found in our blog post!

See below for the complete changelog.

---

Features

• fonts: Add support for fonts in Assets 67f91ec
• fonts: Add support for symbols font uri override 026c7fc
• notimplemented: Update error messages to include a link for not implemented APIs 2dc18e0
• xamlgen: Add support for debugging information, refactor BaseUri location fb3a55e
• xamlparser: Adjust support for relative Uri parsing to enable contextual image loading 8b4c228
• Add AutoPtr/StructPtr to TSInteropMarshaller 553f390
• Add linker attributes ee01391
• Add platform tags for Linux and Cloud on Uno templates 55ee8d0
• Add WinRT interop methods d6e9b26
• Adhere to HorizontalOffset and VerticalOffset 3f687ab
• Adjust metadata update agent for explicit updates afc258e
• Android Calendar (AppointmentStore), with struct (for all platforms) d641eaf
• Android Calendar, Reminder column a4b9c45
• Annotate Accelerometer 7ec2bdf
• Annotate Gyrometer 122744d
• Annotate LightSensor d8ef246
• Annotate Magnetometer 760d7b1
• Branded Item Templates a9b79b9
• Improve corner radius accuracy on Android dc358f2
• Initial focus on ContentDialog 91cd6f1
• Initialize runtime exports at startup 83f5da7
• ISelectionRange 83867cb
• Load Samples app Pages within Frame 913da44
• NeedsFrame porperty for SampleAttribute eacb4a0
• Preserve types conditionally 5d88cf7
• RectangleClip 35a8e98
• StorageFileHelper ca2f177
• Support custom markup extension in Style Setter 95bca12
• Support for TextBox and PasswordBox clipboard methods f42b59c
• TextElement.XamlRoot f4fd1b5
• droid: enable copy from readonly TextBox 85ba608
• gtk: Add support for .NET Native AOT 8d9ff09
• template: Move to single location projects 023502f
• Warn when Window constructor is used in Uno Platform targets 221f061
• droid: add property for native behaviour a8ed9ea
• Use RectangleClip for rounded corner border 0f71961

Performance Improvements

• Skia: Skip border shape creation with empty area, avoid generating border with empty thickness 0ed6b6f
• trim: Allow for ExpandoObject and DynamicObject to be linked out base on non-uno uses 7165749
• trimming: Break static dependency on FlyoutBase 006ec63
• trimming: Remove duplicate resource files 4e10391
• wasm: Enable trimming for external drag and drop 7dbab4f
• WindowManager: Add ArrangeElement binding 927ab11
• WindowManager: Add CreateContentNativeFast binding 406c5e2
• WindowManager: Add DestroyViewNativeFast binding 31233d7
• WindowManager: Add MeasureViewNativeFast binding 58bd823
• WindowManager: Add SetAttributes binding 4089821
• WindowManager: Add SetElementTransformNativeFast binding 89d6b2b
• WindowManager: Add SetPointerEventsNativeFast binding 6c33537
• WindowManager: Add SetStylesNativeFast binding 5b28b35
• WindowManager: Add SetStyleString bindings 1088eee
• WindowManager: Add SetVisibilityNativeFast binding 523230f
• Accelerometer JSImport bindings cd0bf46
• Adjust IsLayoutRequested interop on arrange b41bac4
• Adjust RichTextBox, MenuFlyout and TextBox trimming a9d1394
• Cache textblock static native properties 4fdef8c
• Geolocator JSImport bindings f662939
• ImplementedRoutedEvents evaluated at compile-time via a source generator f2b18d9
• Misc linker hints updates e927734
• Reduce allocations in RegisterCustomScheme 6ad7b7c
• Reuse java strings instances in TextBlock 0164ed0
• Reuse radii arrays c74ff5a
• Specialized binding for BorderLayerRenderer.GetOverlayDrawable() e4e87de
• Specialized binding for Brush.GetBackgroundDrawable() 0adc2ea
• Specialized binding for UIElement.AdjustCornerRadius() 6d16f8a
• use a ref inside the new array and reduce code size af90eb7
• Use records instead of record structs for large SG models 026dfd9

Bug Fixes

• assets: Use orginal library name casing for ms-appx:/// uri 73e0145
• flyout: XamlRoot not implemented 2dbc661
• fonts: [Android] Adjust backward compatibilty for explicit AndroidAssets-included fonts 98acad0
• fonts: Adjust font loading for ms-appx resources from assemblies 88be67d
• gen: generate less local variables c1c1a20
• gtk: Add more descriptive message on initialization failure 58f5bf6
• image: Fail with a descriptive error on relative Uri loading 30ffcda
• metadata: restore metadata updates for net6 or greater 4349883
• nuspec: Remove Mono.Cecil 5892a1e
• reg: Adjust UnoHasLocalizationResources metadata dd3d179
• reg: Include explicitly specified fonts in info.plist for backward compatibilty 9204b8f
• reg: Update symbols after ms-appx:/// casing update 26ba9bb
• remotecontrol: Don't fail on multi-targeted projacts loading 634febb
• remotecontrol: Don't force InterdemediateOutputPath for metadata updates ddf9c1b
• remotecontrol: Ensure generators run after a referenced project file update db174a8
• remotecontrol: Explicitly await all connection tasks to avoid unobserved tasks exceptions 65dee61
• added not implemented method for Win and UWP d2a1d65
• cleaned code 449f6cc
• document uno.ui/uno.winui conflicts 8423f0a
• identation 47fd961
• included implementation for UWP/WinAppSDK and updated docs f5b36e3
• Invisible invalid char c722537
• moved helper to UI.Toolkit project 65043da
• Native popup panel positioning on iOS ed00261
• remotecontrol: Observe changes on ProjectReferences during HR sessions 0b5a801
• resw: Adjust resources resolution for project references 7cb9abd
• template: Adjust default language for Windows head 0efd543
• template: Ensure x86, x64, arm64 windows head is deployable by default 2c1e21c
• winui: Adjust WinUI build 7ff5cef
• Adjust for 17.5 Preview 2 additional obsolete members on iOS a9dcd75
• Avoid deflating layout slot rect by border thickness twice dd3631e
• EffectiveViewport does not goes through native only elements 55205be
• LayoutSlotWithMarginsAndAlignments is not correct on WASM due to BorderThickness 1bd2555
• Remove incorrect UnoRuntimeIdentifier value 116ab96
• Remove some duplicated namespaces e2da443
• Remove unused generated code fb00901
• trimming: Disable XAML trimming on mono+OSX/Linux 0442a1a
• Pack analyzers in analyzers/dotnet/cs ba806d1
• Remove unsupported TFMs from WinUI package 800b18d
• removed redundant code and small refactors 8f794c0
• renamed AssetsManager internal member 80f7974
• Restore ProgressRing.xaml a4bbd3a
• Set XamlRoot on Popup if not set for Uno.UI bce4b14
• skia target a79184a
• Support for custom markup extension in VisualState Setter eb0f7e9
• CI: TakeScreenshot on Android b026c4b
• templates: Only build net6.0-windows10.0.18362 on Windows 55cabb4
• uap: Fix generators should not run under uap builds 26c6772
• ToolTip not styled correctly 1d3473c
• updated compiler directive for windows implementation 27015f6
• Use executing assembly path for InstalledPath on Skia 72de4e3
• animation: forever animation not repeating from default value 5f3ea8e
• dependencyobject: Clear binding on ClearValue 9b2f394
• dispatcherqueue: Use proper CheckThreadAccess/HasThreadAccess behavior 7aa064d
• DispatcherQueueTimer: [Wasm] Ensure ticks are raised on the dispatcher c7f011a
• dotnetnew: Adjust Server template compilation conditionals 1671dcd
• embeddedresources: Restore proper AssignTargetPaths/AssignLinkMetadata for EmbeddedResource LogicalName metadata 1cb346c
• framebuffer: Restore 32 bits color format 533ecf0
• ios: animation stopped when app resumes from background 8e06564
• perf: Don't include pdbs by default for xamarin targets in nuspec 1802e9d
• reg: Add missing embedded resource in vsix 2022 f29240c
• reg: Add missing generic and server projects to mac filter d6e2a96
• reg: Adjust dotnet new unoapp parameters 093f3f5
• reg: Adjust for XAML Trimming cross-runtime libraries build before Uno 4.6 e83fa35
• reg: don't raise XA0101 72286c3
• reg: Remove duplicate font asset fbe4ab6
• reg: Restore multi-folder project structure a6ef125
• reg: restore xaml trimming for net5 or below d537147
• SetStyleString: Add missing parameter 0944535
• Skia: Initialize DisplayBlock text in TextBoxView 80a2ac1
• xamlreader: Process members on top-level resource dicitonaries 732d001
• XamlReader: Fix invalid Windows.UI lookups c840727
• Add partial keyword to CustomControl.cs at TemplateControl 5a6fb00
• added caching for Android and Wasm assets 64dc566
• added compilation constraint for netstd f0d06da
• Attempt to fix possible crash when using GCColor 7a9c89e
• Avoid creation of unholded ref of CGColor fdd52d9
• ci targets for MacO...

4.6.19

Today we are announcing support for .NET 7. Our sixth release of 2022 is a huge step towards creating the most productive platform for building .NET-based applications which run everywhere.

For more about the highlights, such as core .NET 7 support, Library Assets, SVG Support, Android 13, the new WebAssembly Bootstrap 7.0 and ASP.NET Core Hosting Project, head to our blog post!

Community Shout Out!

Our contributor community just passed 400 contributors across all our repositories – be it the core UI one, documentation, or gallery.

Here are some of our contributor's updates:

• @SeanKilleen for the automated spell checking of markdown documentation
• @blouflashdb for template updates
• @pkar70 for the PhoneCallHistory implementation for Android
• @seanocali for the support of CustomResource in XamlReader
• @workgroupengineering for source generation project cleanup
• @TopperDEL, @IrvinDominin, @peterfoot for documentation updates

Big shout out to all our new contributors who came during our Hacktoberfest initiative, helping make our Gallery loaded up with new samples.

Features

• assets: Adds support for content assets in NuGet and transive project refs (c39af78)
• Template: Add manifest.json to WASM template (9b802c5)
• Template: Make manifest.json optional (572c991)
• xBind: Enhanced support for x:Bind casting expressions (4521b63)
• Add support for attached properties localization (e726e39)
• Add support for VSIX .NET framework selection (f38716d)
• Default to C# latest on UWP app solution template (ad708aa)
• WASM: NativeOrientation property support (83382c3)
• Add documentation for LightSensor (9cf7986)
• Add UI Test template for VSIX (7ca050b)
• Aligned icon font (c412d01)
• Automatic docs spell-checking and associated fixes (1ba4d9a)
• Build for wasm/skia net7 (7e899a2)
• CallLog implementation for Android (023a029)
• ElevatedView unification on Android (ccf296c)
• ElevatedView WASM unification (ebed703)
• Port ColorPicker.Orientation feature from WinUI (738facc)
• Support for SelectionHihglightColor on Skia (890f2d4)
• Support for SVG rasterization (c8bce1c)
• Support scaled logo asset as icon on Skia (e3aa7fb)
• SVG rendering on iOS and macOS (3610d08)
• SVG support on Android (82c0ccc)
• SVG vector rendering on on Skia (bb941b7)
• hosting: Add support for ASP.NET Core hosted WebAssembly app (ca382fc)
• TextBox: Android selection and placeholder color (14854a7)
• TextBox: iOS selection and placeholder color (e1494e2)
• TextBox: WASM selection and placeholder color (3d07dba)
• WASM: Support setting the screen orientation (43bed26)
• xbind: Add pathless casting support (21f12bc)
• xBind: Add attached properties path support (290a52c)
• Mark SelectionHighlightColor implemented on PasswordBox (9bad3e0)
• Support for CoreApplication.Exit and Exiting (dfbaf17)
• XamlSourceGenerator tracing (aaa3a41)
• xamlreader: Support CustomResource (c9d011c)

Bug Fixes

• MenuBarItem: Removed invalid cast (4370f0f)
• add markdown code fence by request (0c09220)
• Adjust image scale logic to fallback to higher DPIs if lower not available (88af9bc)
• Ensure proper error reporting when a WinAppSDK project references Uno (d92eb5f)
• Ensure reusability of ImageSource (6b08dd7)
• Ensure ShowAsync returns if popup is forcibly closed (368f496)
• Ensure Xamarin.iOS target is deployable when Mac Host is connected (fce6773)
• Hide invalid HTML img elements (e8547ec)
• Make horizontal scrolling in RefreshContainer on Android more reliable (1774a3a)
• Nullable build errors on iOS (bd336e7)
• Reference Bootstrap.Server package for Server project (0297d51)
• remove unnecessary inline code snippet (e9a7389)
• slnf referencing non-existing project (7cb2be0)
• BindableTypeProvidersGenerator: Generate suppressions (67dbdba)
• ContentDialog: Handle back button being pressed (17633b7)
• DependencyObjectGenerator: Handle nested classes properly (d0b2734)
• dotnetnew: Align WinUI templates to use the same as the VSIX (079b755)
• dotnetnew: Ensure Wasm and Skia runtime libraries are using the same name (2bedb82)
• localization: Fix type conversion on attached property implicit localization (67b7e91)
• logger: Ensure thread safety of LoggerFactory (6b563a6)
• SamplesApp: Favorites list loading (419483a)
• wasm: Adjust TS compiler dependency on CompileTypeScriptWithTSConfig (ab0e1d8)
• XamlGen: Handle base type not specified in code-behind (8af10a0)
• xBind: Adjust FallbackValue behavior to explicitly support setting null to the target (c1f8c19)
• Avoid null-ref, fallback to VisibleBounds is XamlRoot is null ([b4ac3eb](jeromelaban@b4ac3eb4c4d3c579d86d9f0ce61...

4.5.9

The fifth release of 2022 brings innovation across all pillars of Uno Platform: UI, Toolkit, Extensions and Tooling.

In the process of this release, we implemented 230 features and bug fixes, as well as welcomed 4 new contributors to our open-source project. Thank you! For those of you who just want to jump into it, please update your Uno Platform NuGet package to the latest.

It’s a massive release, so for those who are in the rush, here is the TL;DR version: We added:

• A major new feature - Uno Islands to help you modernize apps
• Increased the breadth of our existing Linux support
• Six new or refactored WinUI controls and brand new pull-to-refresh
• Super easy way to Authenticate users with MSAL, OIDC, Web and Custom authentication providers via Uno.Extensions
• Boosted Reactive extension
• Added SafeArea, Input, Status Bar, Input, Control, TabBarItem Extensions and Badge support as part of Uno Toolkit
• Released Preview 3 of our Uno Platform for Figma add-in with more customization options and performance updates.

Community Shout Out!

We wouldn’t be able to do what we do without the help from our great community – filing bugs and issues, and also helping with the core project by submitting Pull Requests. Our contributor community is now over 230 developers strong, and we just passed 7,000 stars on Git Hub, and passed 2,000,000 downloads on NuGet. Thank You.

Special Shout out for 4.5 release goes to Giuseppe Lippolis (AKA @workgroupengineering) for contributing a fix for RenderTargetBitmap, InMemoryRandomAccessStream, and a variety of quality of life updates.
Thank you to all the other contributors:

• Support for testing generators with diagnostics, compatibility with other source generators (@HavenDV)
• Documentation updates (@Rarisma, @linkdotnet, @MiYanni, @DavidPerikala)
• DataWriter.StoreAsync (@rafaelrmoukc)

For more details about this release, head to our blog post.

Full release notes

Features

• (iOS) Add enable corewindows events 7e98596
• (iOS) Add expose Raise Events 384a94b
• (iOS) Add KeyEvents Support MacCatalyst c6a8db8
• (iOS) Add VirtualKey mapper 036f856
• (maccatalyst) add keyup event support d63624b
• (maccatalyst) bubble up key events to focused element 9ca702b
• Add DataWriter.StoreAsync 331b8a9
• Add GetPatternCore support for ButtonAutomationPeer 24f2d76
• Add missing Acrylic brushes without WinUI 2.6 styles 6c3aa64
• Add missing StaticResourceExtensions for VS intellisense 3af3e11
• Add refresh indication support for non-mobile platforms 7aeee51
• Add support for FrameBuffer DPI and scale computation e59df85
• Add support for StaticResource loading inside a ResourceDictiomary e05bd32
• Add the ability to define #pragma warning disable in generated code 9323607
• Add the ability to disable _knownMissingTypes validation a783600
• Add Windows.UI.Xaml.Hosting API contract 530c15f
• Allow Android native visualizer theming d7494e5
• Allow iOS native visualizer theming c3f46c1
• Basic RefreshContainer on Android 78f88df
• Basic RefreshContainer on iOS 9641599
• Basic support for DesktopWindowXamlSource c8ce703
• BitmapEncoder a194583
• Find associated VisualTree and XamlRoot for multiple roots 6c09f4b
• Handling full uri as callbackuri for ios/macos f6deb9e
• Implement analyzer for deprecated WasmHttpHandler a211ce3
• Improve automatic OpenGL/ES detection f614a88
• Include repository path in Samples app title bar e5076f8
• InMemoryRandomAccessStream e7743ab
• Marking additional Markup interfaces as implemented 2dd5612
• Port RefreshInfoProviderAdapter 4e7c22c
• RefreshInfoProviders d513257
• RefreshVisualizer 50d2f75
• RenderTargetBitmap ba33ee0
• Resolve managed path and use weak reference pooling for FontFamily.Loader.wasm f3ed46a
• Skia WPF Runtime Tests and Snapshot Tests ecbac16
• SoftwareBitmap 69a824c
• Support for multiple XamlRoots 09764b2
• Text input support in Uno Islands 786017b
• Uno.UI.XamlHost deead11
• UnoXamlHost for Uno Islands 12dffe8
• Update InfoBar to latest MUX e9c6f29
• Update Skia slnf with Xaml Islands projects c0304a3
• Use dotnet SDK linker when available c20e368
• Use NameProperty in Skia and WASM b33cda1
• droid: ListView smooth scrolling 762c5e2
• FrameBuffer: Add RGB565 color depth support e6e79e8
• InMemoryRandomAccessStream: Implemented ReadAsync, WriteAsync, GetInputStreamAt, GetOutputStreamAt da2699c
• mobile: use animation for LVB.ScrollIntoView a352416
• IRefreshInfoProviderAdapter support b42106c
• Targets with constants moved to an earlier stage. c73cb49
• Updating WAB for Android CustomTabs 09102ea
• Use in-app screenshots for android cdaeda4
• WASM Font Preloading Support e869192
• xaml: add support for raw numerical enum values 8723bed
• XamlReader: Add support for ThemeResources and MergedDictionaries 7785828
• WinUI Breadcrumb f379841
• WinUI BreadcrumbBar 272a1d3
• WinUI PipsPager 99305a4
• WinUI RefreshContainer e88ca39
• WinUI Slider / RangeBase / Thumb / TickBar 40e236f
• Android: Allows for images to be read using GetFileFromApplicationUri. 5f76bc2
• TextBlock: [Skia] Add hyperlink hit testing b0cac68
• TextBlock: [Skia] Add support for TextAlignment.Justify and CharacterSpacing 80ca410
• Xaml Island root 601a208

BREAKING CHANGES

• Changing Time of TimePickerFlyout from UI doesn't preserve existing days, seconds, and milliseconds. To get the legacy behavior back, set FeatureConfiguration.TimePickerFlyout.UseLegacyTimeSetting to true.

• On iOS, when running under the iOS Simulator, the MtouchExtraArgs property must include --registrar=static or the runtime will fail with the following message:

  Don't know how to marshal a return value of type 'System.IntPtr'.
  

  This validation can be disabled by setting the MSBuild property:

  <PropertyGroup>
     <UnoDisableValidateIOSStaticRegistrar>true</UnoDisableValidateIOSStaticRegistrar>
  </PropertyGroup>

  See #9430 for more details.

• Native popups on Android were frequently causing problems with more complex controls like AutoSuggestBox and MenuBar. To aleviate these problems we are switching to use the unified managed popups everywhere instead. This may be breaking apps which depend on the native popups logic or layout.

• This update adjust the name of android drawables, in order to have full path disambiguation. This also means that actual resource names now will be separated by "_" in place of the folder hierarchy. This is generally not a problem is the files are read using ImageSource.

Performance Improvements

• Avoid Regex for indentation when possible 693c085

• Enable CA1821 (Remove empty finalizers) 3669fee

• Enable LINQ-related performance analyzers 6ae0751

• Enable NetAnalyzers performance analyzers 5ebb6d9

• Use .ContainsKey instead of .Keys.Contains (CA1841) 708d286

• iOSmacOS: calls getter too many times 9891407

• iOSmacOS: Reduce nfloat / float / double conversions 4c2e8c2

• iOSmacOS: Simplify MeasureOverride and ArrangeOverride 707c5db

• macOS: Avoid calling NSView.Layer getter more than once / method 3ced78d

• macOS: Call Bounds propety only once inside FrameworkElement.Layout 02e629e

• feat!: Implement TimePicker's SelectedTime/TimeChanged/SelectedTimeChanged 1563a5b

• feat!: Stop using Android native popups by default d7dee36

• fix(android)!: Retarget Android assets with path names d4308f1

Bug Fixes

• AutoSuggestBox: Close suggestion list on losing focus 0da0671
• gtk: [Linux] Ensure that missing libGLESv2.so does not break the runtime 5c61eeb
• GtkHost: move window title assignment after App is initialized. 1e5fa80
• pointers: Do not simulte enter/exit for "touch as mouse" on skia 7a3a090
• pointers: Fix touch support on some specific skia devices (e.g. RPI) ace611f
• SamplesApp: warning XA4216: AndroidManifest.xml //uses-sdk/@android:minSdkVersion '16' is less than API-19 1b1a2d1
• skia: Fail safe on invariant culture c08b512
• ToggleSwitch: add workaround for visual states 9078f8b
• WaitForUnlockedFile: Break if we can acquire exclusive lock on file d026090
• wasm: Expose FontFamilyHelper through Uno.UI.Runtime.WebAssembly 7ed2ae9
• wasm: Invalidate TextBlock measure cache when a font successfully loaded f49af2a
• Allow setting Selector.SelectedIndex value before it is valid when items are empty 232651d
• Apply review c8ca870
• Avoid refreshing Android RefreshContainer when not on top cc5fb7d
• case-insensitive linker ref paths 8c5b0a6
• Clip desired size to MaxWidth and MaxHeight ae2076f
• ContentPresenter content alignment 5bf7a3c
• Disable merging in uno debug builds, exclude Java.Interop for linking issues 4bf84f5
• Don't fail on ...

4.4.5

Uno Platform 4.4 is our 4th release in 2022, keeping us on a once-in-six-weeks rapid release schedule we aim for. The release packs numerous UI and performance improvements across all target platforms. First, on the UI side you’ll be able to produce beautiful fluid animations on .NET Android, .NET iOS and Skia-based targets, as well as increase high-fidelity renderings of all your texts on Skia-based targets. Second, on the performance side we are including support for the most recent WebAssembly advances available in .NET 7 – Wasm Threading and Exception Handling. Lastly, we also enabled new input scenarios via GamePad API support and improved the default project templates.
In total we have implemented and resolved over 90 new feature requests and issues.

View the full announcement in our blog post.

Some of Highlights:

• Skottie integration (MUX ProgressRing on all Skia targets and .NET 6 mobile targets) (@jeromelaban)
• Overhauled Skia TextBlock rendering with HarfBuzz (Support for wrapping, rich formatting, etc...) (@mikernet)
• dotnet new unoapp now uses .NET 6 and WinAppSDK (@jeromelaban)
• The Skia.WPF project is now available as one project (no more .Skia.Wpf.Host project), and now supports .NET 6/C# 10 (@jeromelaban)
• GamePad APIs (@MartinZikmund)
• Experimental Wasm threads support (@jeromelaban)
• Wasm Exceptions support (@jeromelaban)
• Many small performance improvements for all platforms (@ebariche, @spouliot)

As always, thanks to our contributors:

• Pre-Android 23 fix (@queequac)
• Docs updates (@aki32, @mmarinchenko, @workgroupengineering)

You'll find below the full change log.

Features

• lottie: Add support for AnimatedVisualPlayer on net6.0 mobile and Skia targets. f0a8ac9
• Add the ability to set the Window background color 67f8ffe
• implement CoreWindows.Bounds 41b21a3
• Merge Wpf and Wpf.Host projects 3f82834
• Move unoapp to unoapp-uwo f27c285
• Move unoapp-net6 to unoapp-uwp-net6 d1b6ac2
• Move unoapp-winui to unoapp-winui-xamarin 68dba9a
• Move unoapp-winui-net6 to unoapp 1a0c349
• BitmapImage: [Skia] Add support for ms-appdata, BitmapImage.ImageOpened/ImageFailed 639fac2
• gamepad: GamepadAdded/Removed on Android a82cafa
• Gamepad: GamepadAdded/Removed for WASM 1160c40
• Gamepad: GamepadAdded/Removed on iOS, macOS dd0a1b2
• Gamepad: GetCurrentReading on Android 96cd0bb
• Gamepad: GetCurrentReading on iOS and macOS 2ce9933
• Gamepad: GetCurrentReading on WASM 52dab51
• TextBlock: [Skia] New HarfBuzz-based text rendering engine dcb83be
• wasm: Add support for threads e53ca2f
• Add WinUI 3 item templates d6a7c22

Performance Improvements

• drawables: Generate resolver to avoid reflection at startup bab524b
• iOS: Cache DisplayInformation properties a5919a8
• iOSmacOS: Directly convert from Color to CGColor b9f8051
• iOSmacOS: Remove dead code and reduce casts in Layouter 7b783b1
• macOS: Avoid calling Subviews getter inside Dispose eff8fd7
• macOS: Cache DisplayInformation properties 67e02bd
• paintpool: Avoid unnecessary managed/unmanaged transitions d11d4e2
• selectoritem: Use monotonic clock instead of DateTime.Now e8d9813

Bug Fixes

• Adjust harbuzz initialization to avoid Gtk3 interference cc0b352
• Never enable the interpreter on net6.0-macos 5c75735
• Skia: [TextBlock] Fix rendering when font properties change 3dc5b2d
• [Android] TextBox EmailSmtpAddress InputScope does not work ebb290a
• [TextBlock] Prevent Text value overriding when it isn't necessary 3808c00
• Adjust default timeout for vscode debugger 507b9c9
• Adjust formatting in the vsix mobile template 4a96a92
• Adjust net6 library template for default xaml includes a6e56ed
• Adjust new net6 library from vsix 48ce808
• Adjust solution filter for unoapp-net6 7741611
• Align resource conversion for empty values 658b3f0
• Allow explicit disabling of the browser context menu 6744488
• AutoSuggestBox Reason with inconsistency 8d8686d
• Avoid Layout property event subscription leaks 2f13d2c
• Calculate SystemFocusVisual position relative to root element 996fd06
• ChildrenInTabFocusOrderIterable skipping first element 908c1e4
• Correct attribute argument for auto navigation 4b8a997
• DataTemplateSelector should throw if container is null 4a296e4
• Don't use GRGlInterface.Create to determine OpenGL availability 503d60b
• Enable VerifyUIElementsInItemsSource test c802530
• Ensure app is started after native WPF template is applied 08b3e0e
• Gamepad readings improvements on WASM and Android 7036e6c
• Invalid support check in OpenGLRenderSurface 3c1b5b8
• Lower roslyn generation selection log message b85366b
• Make Clipboard.GetContentAsync reliable 4762bb2
• missing guarding leads to crashs under Android prior to API 23 97a88cb
• Missing mobile project for unoapp 41e1059
• NavigationViewTests waiting 7b4c596
• Replicates the linker default behavior for xamarin.mac 8e69ea8
• Use fully qualified name lookup for xClass resolution fa9f6b3
• UWP Samples app runtime tests attempt to use DP from non-UI thread d656f03
• codegen: Serialize XamlGenerator executions 38705eb
• DatePicker: Ensure proper native picker readability when the system theme is overriden. 77b795b
• dotnetnew: Fix incorrect restore in unoapp-winui f50e281
• dotnetnew: Misc adjust unoapp-winui-net6 d77a1a4
• expander: properly clip to bounds on expand/collapse 66cdc45
• ItemsRepeater: Avoid ItemsSource and Layout memory leaks 9320a67
• ItemsRepeater: FindFocusCandidate did not return focused child 6fcf1dd
• macOS: Remove warning/usage about/of deprecated userSpaceScaleFactor f2b76cc
• measure_dirty_path: recycled ItemsControl not re-measuring 6f87bb8
• net6: Windows iOS build fails to package bundle resource properly dc6b864
• pointers: [iOS] Fix frame id capping to uint.MaxValue (Breaks Drag and Drop after about 10 days of device uptime with latests version of iOS) 2a08809
• skia: Add missing Harfbuzz dependencies for Wpf, Tizen and Framebuffer 260ae4d
• skia: Adjust more Harfbuzz dependencies a7a6797
• winui: Adjust path for manifest a318b3a
• Reset NSObject InFinalizerQueue after calling ReRegisterForFinalize 79425c9
• Sync system focus visual with the focused element on scroll 523a82c
• TextWrapping="Wrap" does not seem to work for TextBox on Android 1727f40
• try to fix broken initial nav 22d69aa
• Using long path format for Attachment 99c410f
• Validation for GL instance b1e50af
• Window Title by Manifest in SKIA WPF and GTK 7081442
• xbind: Ensure source updates update the target during a two-way binding 55d166f
• TryFocusAsync on non-focusable elements 3e60ded
• Turn Window Title by Manifest in SKIA 3665d46
• reg: Add missing harfbuzz dependency e42bf4e
• WebViewBehavior: nre 9aaa7e0

4.3.8

Uno 4.3.8 is a service release for Uno 4.3.

What's Changed

• Adjust new net6 library from vsix in #8898
• C# intellisense improvements for VS Code in #8948
• GTK Hardware acceleration fixes for Windows in #8943
• Various improvements to dotnet new templates in #8950

Full Changelog: 4.3.6...4.3.8

4.3.6

Uno Platform 4.3 is here! The focus of this release was on enhancing our Figma plugin which generates your app XAML directly from Figma designs, Uno.Themes Material v3 update, as well as advancing Uno Extensions to help bootstrap your apps faster.

See our blog post to get all the details!

You'll also find updates for:

• Visual Studio 2022 17.3 Preview 1 and .NET 6.0.300 Mobile GA support
• Wayland support for Skia Gtk backend (Thanks @microhobby!)
• Visual Studio 2022 Template Platform wizard
• Grid Succinct syntax for WinUI
• XAML MarkupExtension
• NetworkInformation API support on Skia (@MartinZikmund)
• BatteryReport and AggregateBattery (Thanks @pkar70!)

Read below for the full change log.

Features

• [droid] BatteryReport and AggregateBattery c3be84d
• Add VS 2022 .NET 6 template, split wizard e00079f
• adding max textscale and usage 1a625e7
• Allow runtime checks whether File System Access API file/folder pickers are available 4fc16bc
• Avoid using Skia Host constructors with args 68a4f42
• BTdevice structs ecfbbe1
• Focus support in managed FlipView 58ea2f8
• Implemented new grid succinct syntax. d433d2e
• Implemented new WinUI Grid assigned ContentProperty syntax. ad7fa98
• Implemented XamlReader support for ContentProperty syntax. 9f8d51d
• Implemented XamlReader support for ContentProperty syntax. ab87f00
• Implemented XamlReader support for succinct syntax. 8057b0c
• Move ItemsSourceView implementation to base, support IReadOnlyList d13f6fb
• NetworkInformation API support on Skia b341ba9
• Prevent net6 mobile creation below 17.3 7dd340e
• Window size for Mac Catalyst 5a65465
• gtk: Add OpenGL ES support 883ab5b
• ios: Add GetLocationManager 12dae4c
• markup: initial parser context support d5976c6
• MSAL: Added "Jwt" assembly to linker definition, to prevent linking-out this when using the MSAL package. 1494c67
• Pass arguments to LaunchActivatedEventArgs on macOS 21e664b
• some Background structs for all platforms 01e0a48
• ValueSet dd54b5c

Bug Fixes

• Adjust formatting in the vsix mobile template c7565a0
• Adjust solution filter for unoapp-net6 a2f553a
• docfx missing change with the last merge a2e5cd5
• Lower roslyn generation selection log message a0c5f7c
• dotnetnew: Fix incorrect restore in unoapp-winui 77ef022
• dragdrop: Make sure to disable dragging on LV's ItemContainer 9e797ad
• markup: custom markup in binding is missing parser context 4f71e44
• markup: NRException when returning null from markup 8a1ef0a
• net6: Adjust assets generation of iOS/Catalyst 7c8bcfd
• net6: restore xamarin-like ios exception marshaling for performance 04cd0dc
• template: Adjust versioning in vsix templates f1b5527
• [SamplesApp] ImageSourceStream Error 522 Connection timeout 931d251
• Adjust default plist values for net6 mobile targets 8fd4390
• Adjust resources generation for net6.0-ios new targets eed7596
• Apply workaround for VS Shared projects issue f2c59ac, closes #5007
• enabling distant URIs for Lottie fcbe986
• Fixed incorrect generation for xaml object binding with xaml object properties. 90208b3
• missing rename NumberBoxTests 61c9d5e
• Temporarily restore LoadActions 024c26d
• samples: Rename dopes tests 650832e
• SamplesApp: Mux Category 7fa2eab
• skia: Restore original canvas state for Software renderer e861f6c
• [SamplesApp] Missing Icon Resource d5c5038
• Add GC configuration for all net6 mobile templates a2155bb
• added feature for Android 0e09483
• AutoSuggestBox.QuerySubmitted ChosenSuggestion should not be null 474d3ef
• codegen: Don't warn on CA1001 by default (disposable fields) for generated code 1d4fb90
• codegen: Enhance roslyn version detection bac02b6
• Adjust for duplicate package references in 6.0.300 d862a96
• E_RUNTIME_SETVALUE SampleContent not found 69de305
• fail gracefuly on invalid PRIResource files 6498cc3
• codegen: Enhance roslyn version detection ce9ef6e
• fail gracefuly on invalid PRIResource files 2cd9ffe
• filesavepicker: Avoid possible IndexOutOfRangeException on macOS de70392
• iOS: Adjust for new nullable signature 52a04f6
• macos: Use case-insensitive API to load images from bundle f21db05, closes #8666
• net6: Restore partial support for MUX progressring 3a0ddf0
• Add FrameworkReference to winui projects 56e0806
• Adjust net6-winui dotnet new 9ccc9ad
• Adjust wizard for VS 2019 464c34e
• FileSavePicker does not return the picked file in Android 9be9dd1
• Fixed AccessViolationException that occurs in GLibSharp.dll after storage picker interaction 2bd123f
• Fixed AccessViolationException that occurs in GLibSharp.dll after storage picker interaction 3cdc26e
• Fixed comments. d706e8a
• Genertaion of native ctor 0d188da
• ImageSourceUrlMsAppDataScheme NullReferencenceException on DataContext Changed e17e5b8
• Improve IsApiContractPresent accuracy a2aef58
• Invalid GUID parameter name in dotnet new template JSON 673b9b6
• max scale factor works as intended on android 63b2944
• MethodAccessException b2ea50d
• nit 41ac436
• NullReferenceException 70b26dd
• PackageIcon a49f972
• Reduce "Uno.UI is using Roslyn generators" message level b97733f
• Reduce logging verbosity for remote control connection errors df9cca6
• Reverted RowDefinition and ColumnDefinition changes. 81a64bd
• some SamplesApp missing resource d574b86
• iOS: Adjust for new nullable signature ec65c79
• net6: [Android] Adjust for proper assets base path f653bf5
• net6: Add supported platforms attributes for CA1416 1d04414
• net6: Adjust keyboard location computation e569a04
• net6: Adjust manual native ctors signature 1815b79
• net6: Restore ElevatedView templated parent support 5a782ff
• TextBox doesn't support the TextWrapping.WrapWholeWords enumeration value 8e6faab
• The parent of FrameworkElement is always null in GenerateBitmap 9f890c9
• typo 525660a
• xaml typo b800a40
• gtk: Fix OpenGL render surface flickering 6e6c158
• net6: [iOS] Ensure current culture is set at Application startup ac58dce
• net6: Auto include BundleResources, show excluded compile items 42c6eba
• net6: Remove unused InvariantGlobalization configuration 6c1f1d3
• skia: SKImageInfo.PlatformColorType is incorrect on macOS/arm64 ba2acc8, closes #8580
• SourceGenerators: NativeCtorsGenerator will execute after XamlCodeGenerator 497bcbe
• vsix: Don't fail if DTE build information cannot be found 9363ae3
• Wasm: Changing TextBox.Text in code should reset the caret a05ca79
• winui: implemented Window::DispatcherQueue 033ae9b

Performance Improvements

• Remove LoadActions a8f2aec

• skia: Reuse surfaces/bitmaps and reduce native calls f8efae7

• fix!: Launch arguments should be separated by space 19ef842

BREAKING CHANGES

• In UWP/WinAppSDK the launch arguments are separated by space only, whereas Skia targets used semicolon before.

4.2.6

Uno Platform 4.2 – .NET 6 Mobile RC1, Performance

As of last week’s release of .NET 6 Mobile RC1, Uno Platform is now following the updates to ensure that you have access to the latest features provided by the .NET runtime.

You can read the full post here.

As per Microsoft’s announcement, the .NET 6 Mobile APIs are now considered stable for iOS, Android, and Mac Catalyst. This enables applications and libraries to be developed without having to deal with any breaking changes in future .NET Mobile releases. As Uno Platform takes a dependency on dotnet runtime, this is important as we can stabilize our own support for iOS, Android and mac Catalyst targets.

Since our previous release about six weeks ago, we also made a batch of changes to fix the support for localization of iOS, macOS and Catalyst apps, based on the new behaviors of .NET 6. In total there were over 190 new features and fixes completed, around Geolocation, focus and keyboard management, Android/Skia/WebAssembly performance, and more. For those who like stats – that’s about 6 closed PRs per business day; we are definitely picking up velocity even more.

As always, to upgrade to the latest bits and use .NET 6 Uno Platform app templates, you’ll need to use uno-check.

You can find up-to-date information about uno-check in our docs.

To install Uno-check:

dotnet tool install -g uno.check

To update Uno-check if you had it installed already

dotnet tool update -g uno.check

You can then run it with:

uno-check --pre

Important note:
If you were already using Uno 4.1.x, had run uno-check and were using VS 17.2 preview 3 or earlier, upgrading to 17.2 Preview 4 or later will cause mobile workloads to become desynchronized. To fix your environment, you’ll need to run the following command:

dotnet workload install ios android maccatalyst macos --from-rollback-file https://aka.ms/dotnet/maui/rc.1.json --source https://aka.ms/dotnet6/nuget/index.json --source https://api.nuget.org/v3/index.json

Community Contributions

We'd also like to thank the community contributors for this release:

• Android FileOpenPicker mime types, DisplayInformation and Geolocator updates (by @pkar70)
• Documentation updates (by @workgroupengineering, @mtaheij, @mikeirvingweb, @xperiandri, @AnthonyDParkhurst, @TopperDEL, @baskren, @LokiMidgard)
• Source generators updates (by @Youssef1313)
• PercentFormatter, PermilleFormatter, DecimalFormatter (by @MohammadHadi2031)
• Fixed support for WPF and net47 (by @trungnt2910)

---

Full change log:

Features

• Add basic support for entered/leaving background deferral 3eb2562
• Add support for overriding the MessageDialog style 95ada29
• Add support x:Bind to static event handlers 1e30a7d
• Android FileOpenPicker MIME types eca4cc1
• Basic ListView keyboard navigation b092f72
• BringIntoViewRequested handling on ScrollContentPresenter 3d09430
• cascade down update to Presenter 760906e
• Change Release package defaults for Android app template 0c4eefc
• CloseRequested event on Skia 9f25358
• ContentDialog-based MessageDialog fbc932d
• CoreApplication EnteredBackground and LeavingBackground events e461b69
• Deferral.Dispose completes the deferral b510d0b
• ElevatedView on Skia 2180e23
• Enable focus states on SelectorItem 73d176d
• Focus support in managed FlipView 58ea2f8
• Implemented feature SelectedText on TextBox 0775781
• more detailed ClassLib info for VB (recreated) a9de33e
• Pass arguments to LaunchActivatedEventArgs on macOS 21e664b
• Support for BringIntoViewOptions 5c45fc0
• Support for UIElement.BringIntoViewRequested routed event d46a2e7
• Update API surface to match Windows 11 22000 SDK efe34fb
• Update Sync generator to 22000 9305aa0
• arrange_dirty_path: First working version of arrange dirty path on Skia & Wasm 56b69c7
• DecimalFormatter: Implement FormatDouble and ParseDouble 3e103af
• dirty_measure_ios: Fixed the broken build for iOS. Not actual implementation of DIRTY_MEASURE_PATH for iOS. ab86102
• FolderPicker: [Skia][WPF] Added support at SuggestedStartLocation and CommitButtonText 3d8bf64
• ListView: incremental loading support for skia/wasm 1410316
• updated Geolocator for Android 280a006
• gtk: Add OpenGL acceleration e89870d
• macOS: Add SelectedRange on TextBox fcaccd6
• measure_dirty_path: Implemented the Dirty_Measure_Path on Android. Should bring significant perf improvements on this platform. 44bc0ed
• PercentFormatter: Implement FormatDouble and ParseDouble e41759f
• xaml: support named params in MarkupExtension 428b08c
• Support WUX ProgressRing everywhere eb13011
• PermilleFormatter: Implement FormatDouble and ParseDouble 0169c51
• Support Enter, Space and Escape on ComboBox fb52456
• Support Up & Down and keyboard item selection on ComboBox d61ce66
• Use theme-aware WASM splash screen by default 7c63800
• textbox: Update IsEnabled 6025109
• fix!: Launch arguments should be separated by space 19ef842
• feat!: Bump UWP version to 18362 9f41fd4
• feat!: Bump to net6 preview 13.2 dee6870

Performance Improvements

• Adjust resource resolver to avoid ICU based comparisons on net6+ 1244199
• Disable logging in release builds 26137e2
• Don't materialize x:Name-marked styles eargerly inside of uno 39a7e70
• Fix regression in SpecializedResourceDictionary 44a49f9
• android: Don't refresh memory statistics too often 259e365
• Scavenge TextPaintPool storage 0d4c160

BREAKING CHANGES

• In UWP/WinAppSDK the launch arguments are separated by space only, whereas Skia targets used semicolon before.
• Bumps the target UWP version from 17763 to 18362
• This update contains binary breaking changes to follow
  .NET 6 Mobile iOS/macOS/Catalyst API changes. It requires Visual Studio
  2022 17.2 Preview 1 or later and cannot work on previous VS 2022 releases.

Bug Fixes

• gtk: Fix OpenGL render surface flickering dd529f4
• net6: Auto include BundleResources, show excluded compile items 42c6eba
• net6: Remove unused InvariantGlobalization configuration 6c1f1d3
• Adjust MonoAndroidAssetsPrefix to use Assets from shared project eb5d0aa
• Adjust default plist values for net6 mobile targets 8fd4390
• Adjust flyout position in visible bounds 2103533
• Adjust resources generation for net6.0-ios new targets eed7596
• Adjust ScrollContentPresenter.ViewportWidth/Height on WASM 9a4e884
• Adjust template for .NET 6 RC1 preview SDL 9567af1
• Adjust VisualParent property to return Selector for SelectorItems bdfc675
• Apply Review 635f43f
• Apply Review 1d233de
• Apply zoom and content offset simultaneously on iOS e92379f
• BorderThicknessProperty warning on skia/wasm 96a46d4
• CI for not used variable 7c94ce5
• Clamp Popup placement in visible bounds 09a2c58
• Decrease default TreeViewItem glyph size e821bed
• Enable XAML Intellisense in VS 2022 for non-WinUI/UWP projects 050b537
• Ensure that TextVisual does not render when size is empty 82aabd6
• FlipView: Flipping on WASM and Skia 811266b
• net6: [iOS] Ensure current culture is set at Application startup ac58dce
• ContentDialog does not show up on startup on WPF 5bff961
• convert-sourcetree-to-winui.cmd 79115b5
• deobsoleting DisplayInformation (Android) 569935f
• Do not apply ScrollOffsets if the source element is the scroll port b115cb4
• Don't throw if DTE SolutionBuild is not available 1bdaa10
• Ensure compatible numeric types are compared to avoid exceptions in Verify bf96acc
• Ensure DeferralManager.CompletedSynchronously is set correctly before Completed execution 00f5f23
• field not available for target 155f2d9
• fixed error loading ms-appx asset files with spaces - all platforms 44d391f
• Generate specific platforms for NotImplemented types bd95a0d
• Generating API sync for Composition & Dispatching in UWP mode c7a6185
• NativeFrame runtime tests failing without outer scroller a43b0e2
• NavigationView selection indicator unreliable for minimal display mode 25e99af
• Samples app local debugging 0296ab1, closes /github.com/dotnet/android/issues/6697#issuecomment-1034784286
• SelectionModel and SelectedItems enumeration 6652358
• Set iOS Window background to Clear instead of White 568d988
• Use native MessageDialog on Android, iOS and macOS eb7ee3e
• WASM ScrollContentPresenter offsets are immediately set after scroll request without animation d149662
• catalyst: Force enable globalization and static registrar, disable interpreter 1e252d5
• catalyst: Include ios XAML for catalyst 00144d4
• catalyst: Move to newer Preview 14 API breaking changes 89e70c1
• CommandBar: Remove 1px "shadow" from iOS native CommandBar 0a4eb04
• DependencyObject: Fix possible infinite loop on ancestor lookup acfb5ae
• FolderPicker: [Skia][WPF] Applied Codacy suggestions bc4db1e
• getparent: Never call .GetParent() in an element while it's being finalized. fb10dc8
• itemscontrol: Fixed problem with internal assignment of indexes to elements in ItemsControl 4b63312
• keyboard: [Android] Improve keyboard size info on 30+ 607992d
• layout_update: Fixed a potiential "Layout cycle detected." exception 8d6075d
• listview: Fix flickering when reordering items on Android 4614b38
• NameScope: Ensure NameScope is not overriden for XAML backed controls b2c8a47
• pointers: Fix gesture recognizer not completing drag manipulations internally. a605c4e
• textblock: Text size were incorrect on Ma...

4.1.9

Uno Platform 4.1 Update for .NET 6 Mobile Preview 14 and VS 2022 17.2 Preview 2

The .NET team has been steadily releasing a set of updates to the .NET 6 Mobile previews. Last week's update was Preview 14, which came at just about the same time as Uno Platform 4.1 release. Following .NET 6 mobile Preview 14, we’re publishing the Uno Platform 4.1.9 service update.

This update includes a new set of binary breaking changes added in .NET 6 Mobile Preview 14, which requires the use of Visual Studio 17.2 Preview 2. If you update to Preview 2, you will need to be on Uno Platform 4.1.9 or later.

Using .NET 6 Mobile Preview 14 with Uno Platform projects

To use this new preview in Uno Platform projects, you’ll need a few steps:

• Install the latest uno-check preview

  dotnet tool install -g uno.check --version 1.2.0-dev.10
  

• Or update to the latest uno-check preview

  dotnet tool update -g uno.check --version 1.2.0-dev.10
  

• Then run the following:

  uno-check --pre 
  

• If you’re building on a mac, either directly or through VS for Windows, you’ll need to run uno-check on the mac as well.

• Make sure that your Visual Studio 2022 Uno Platform extensions are updated to 4.1.9 (it should be automatically updated)

• Update your nuget packages to Uno.UI.* 4.1.9 or create a new project from the templates.

Note that if you intend to build for iOS, Xcode 13.3 is required and that this version of requires macOS Monterey.