5.6.30

In Uno Platform 5.6, our first release of 2025, we’re doubling down on what matters most to you — productivity, performance, and seamless cross-platform development experiences. There are major advancements across the board, from faster Hot Reload and expanded app packaging support to significant runtime and memory optimizations.

• Hot Reload continues to evolve and lead the .NET ecosystem. As it is the foundation of Hot Design, our next-generation visual designer, nothing short of an amazing Hot Reload experience will satisfy us.
• App packaging is now even easier, with new support for .pkg and .dmg formats, code signing, notarization, and destructive mode Snap package creation for CI environments.
• Performance improvements across Uno Platform include up to 10x faster execution for Wasm AOT, more efficient visual states, and memory optimizations that make apps leaner and faster.

Take a look at our blog post for now details!

See below for the full change log.

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Features

• Add Color resources to ResourcesExtractor (7d9a654)
• Add Microsoft.Windows.AppLifecycle to Sync generator (96ac958)
• Add missing contracts to ApiInformation (0fe8895)
• Add native embedding to netXX-desktop/macOS (66daa65)
• Add support for AppWindow.Show methods (c9305c4)
• Add XAML resources UPRI trimming (0dfd176)
• Allow selecting custom values on Selector (8b6a5d3)
• Allow simulating touch input in Samples app (2a243c9)
• hr: Add ability to remove root of a DataTemplate with HR without cnomua (545e109)
• hr: Remove deprecated XAML and partial reload HR modes (a46202a)
• Implement pattern/template grammar for DateTimeFormatter (c8c6a43)
• implement ShapeVisual.ViewBox (0a0c855)
• implement the X Input extension to support touch input, smooth scrolling, etc. (071570e)
• In app review on Android (760205a)
• InputPropertyAttribute (493ede4)
• Listen to trat changes on iOS 17+ (3cafa43)
• macOS: override ms-appx location when app is bundled (05f21e6)
• Microsoft.Windows.AppLifecycle contract (b4619da)
• Simulate preview key events for tests (61c80df)
• Uno.UI.GooglePlay (61041ae)
• Use SIMD to compage images in a test to accelerate builds. (f1883d1)
• Warn the user when native frame is used with WinUI Frame behavior (e7a0788)

Performance Improvements

• anim: Don't refresh triggers and transitions during parsing (ec3ab58)
• anim: Register only once to the JS animationframe callback (2b303b6)
• brush: Don't use reflection to invoke brush updates (679b4bf)
• Enable ResourceDictionary "not found" caching (6f696d4)
• limit JavaStringCache entries to deal with excessive GREF counts (deff175)
• optimize opacity filter allocations (91be36d)
• reduce SKPaint and SKPath allocations (9264d5e)
• wasm: Split methods containing try/catch/finally blocks (c4df6bf)

Bug Fixes

• add minimum API HttpRequestHeaderCollection to work (c781c95)
• Adjust [NotImplemented] on PasswordVault (0202aa8)
• Adjust build for macOS 15/14 for the removal of Xcode 16. (519a059)
• Adjust for outdated rc2 references (ba5b416)
• Adjust implicit package inclusion (aba082d)
• Adjust IsFocusable on Popup (228d4a1)
• Adjust support for InvariantCulture mode support (39931e8)
• Adjust tf reordering for VS 17.12 or later (5e6c681)
• Adjust tf reordering for VS 17.12 or later (d7f3733)
• Adjust the target SDK version of Samples app on Android (dc9da22)
• Adjust TreeHelper to correctly handle native elements (06e9137)
• align DepObjCol indexer behavior with winui (1c01de0)
• Allow closing ContentDIalog after button click cancellation (2aacc68)
• Allow properties to be multi-lines (5813d5b)
• Allow properties to be multi-lines (78fa7d7)
• Always activate window on Activate() (33ebe65)
• android: PointerRoutedEventArgs.GestureEventsAlreadyRaised was reset while bubbling events up (864e00f)
• android: Restore inheritance workaround for android (0222291)
• Apply x:Bind expressions in Resources (5529e7b)
• assets: Adjust project transitive output path (983b96d)
• Avoid duplicate slash in AssetsPathBuilder (e5db20c)
• Avoid handler leak on layout instance (f647e4c)
• Avoid MUX vs WUX type clashes (2143af3)
• Avoid subscribing to touch scroll events twice (546946c)
• change how we handle the keyboard (5b7c0fc)
• ci for macOS (d1ca282)
• codegen: markup-ext improper cast for nullable value-type dp (0ab2847)
• Correcly await async RunOnUIThread calls (7866edc)
• DeferLoadStrategy should work even if no visibility is set (6c198eb)
• Define the working directory for add-in discovery (922f095)
• Deprecated iOS Launcher methods (73c27f8)
• Do not output PopupPan...

5.5.94

What's Changed

• fix: Define the working directory for add-in discovery (backport #18999) by @mergify in #19011
• fix(netstd): late template application is ignored (backport #18944) by @mergify in #19003
• refactor: shape perf (backport #19023) by @mergify in #19063

Full Changelog: 5.5.87...5.5.94

5.5.87

What's Changed

• docs: Adjust MarkupExtension sample (backport #18870) by @mergify in #18877
• docs: Bump bootstrap commit (backport #18845) by @mergify in #18878
• fix(scrollviewer): fix scrollArgs.IsIntermediate on WASm (backport #18883) by @mergify in #18891
• fix: Fix HRI not being draggable (backport #18873) by @mergify in #18893
• fix: Move to jsimport for bbox (backport #18900) by @mergify in #18905
• fix(net9): Transitive assets handling (backport #18897) by @mergify in #18935
• perf: Don't use multicast delegates for DependencyObjectCollection.VectorChanged (backport #18910) by @mergify in #18936
• perf(brush): Don't use reflection to invoke brush updates (backport #18899) by @mergify in #18940
• fix: Fix logging of add-in discovery (backport #18958) by @mergify in #18965
• docs: Add tip for excluding pages with Uno.Sdk (backport #18963) by @mergify in #18967
• fix(assets): Adjust project transitive output path (backport #18966) by @mergify in #18974

Full Changelog: 5.5.76...5.5.87

5.5.37

Uno Platform 5.5 - Automated App Packaging, .NET 9 RC2, OpenGL, WebView2 and more

Each release, we don’t just improve—we aim to revolutionize your development experience. For this release, we focused on drastically reducing the time and complexity required to package and distribute your cross-platform applications, in addition to a plethora of other productivity and performance features.

Our new App Packaging automates the process of bundling binaries, assets and dependencies into platform-specific installers for Linux, macOS and Windows on desktop. And, yes, that’s in addition to the seamless support we already provide for Mobile and Web packaging. It removes hours of frustration and dozens of manual steps which are typically needed when preparing your app for publishing, with just a few commands or clicks.

In addition to app packaging improvements, we are adding support for .NET 9 RC2 with WebAssembly, OpenGL Support, WebView2, New Skia Canvas, Combo Box and Templated Parent. It’s a big release, grab a coffee and read through our blog post.

At a glance, here are some of the new features:

• Linux Snap, macOS .app and ClickOnce packaging support
• GLCanvasElement for Desktop
• SkiaVisual / SKCanvas support
• WebView2 support on WebAssembly
• .NET 9 RC2 support
• .NET 9 WebAssembly bootstrapper support
• Support for ComboBox.IsEditable, ComboBox.TextSubmitted, ComboBox.SelectionChangedTrigger
• Many TemplatedParent propagation fixes
• Support for ColorHelper and KnownColors
• In-App rating support on iOS
• Various DependencyObject performance improvements and memory usage reductions

You can find out the changelog below.

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Features

• add a SkiaVisual that allows external use of SkiaSharp (5ff75bd)
• Add ability to configure timeout for file update to work on slow CI (7ab30cc)
• Add ability to send null old content to overwrite file (2cd7ad4)
• Add contract for to allow user interaction in IDE from the dev-server (fc7312c)
• Add discovery of dev-server add-ins (d73066d)
• Add extensiblity support in dev-server (753965d)
• Add message for to add a menu in the IDE (0433d09)
• Add Microsoft.NET.Sdk.WebAssembly support (d3312b2)
• Add more info (86dfaca)
• Allow disabling generated Application.UnhandledException handler (307acc1)
• Allow selecting custom values on Selector (8b6a5d3)
• Allow usage of HR indicator from external tool (2cf2f71)
• Bump Uno.Fonts to 2.4.5 (84a5e72)
• ComboBox.IsEditable (f491c97)
• ComboBox.TextSubmitted (a22f88c)
• Correctly indicate support for DesktopAcrylicController and MicaController (c4ee18a)
• Create IIdeChannel services and register it into DI to be usable by add-ins (2099883)
• Define constants for packaged vs. unpackaged WinAppSDK (2ad6248)
• GlCanvasElement on MacOS (363b8df)
• hr: Add ability to safely handle exceptions in UpdateFile (e5974da)
• hr: Add UpdateFile API (bcabbd2)
• Implement ColorHelper (73e0d61)
• Implement KnownColors (0d604a0)
• Implement GetColorNameResourceId (d494270)
• In-app rating request on iOS (672148d)
• InputPropertyAttribute (493ede4)
• introduce the ability to draw using raw OpenGL on skia (ff6e501)
• ios: add webview2 inspectable feature (f8c6ac7)
• iOS: validate for device version (918f34b)
• Make breaking on unhandled exceptions opt-in (48d42f6)
• New DependencyPropertyHelper class (844b8e2)
• Reduce allocations when using AsyncLock (+ remove all dependencies) (6a52019)
• Simulate preview key events for tests (61c80df)
• Support for ComboBox.SelectionChangedTrigger (0d016e2)
• Throw ArgumentNullException if XamlRoot is not provided to VisualTreeHelper (c53c785)
• Update API surface to WinAppSDK 1.6 (abb3fca)
• Update Sync generator to WinAppSDK 1.6 (49ecdae)
• wasm: Remove dependency on js invocation internal calls (c9f9377)
• WebView and WebView2 on WebAssembly (be3a0fb)
• webview2: add feature configuration for ios inspectable (15ed6af)

Bug Fixes

• ActionAppNotificationSettings Launcher missing package reference (7b7cb35)
• Adjust AddIn path (54da54f)
• Adjust ContentPresenter automatic propagation (8ad591f)
• Adjust IsFocusable on Popup (228d4a1)
• Adjust ScrollContentPresenter measure to prevent infinite available size when necessary (565dd04)
• Adjust the target SDK version of Samples app on Android (dc9da22)
• Adjust TreeHelper to correctly handle native elements (06e9137)
• adjust workaround for android popuppanel layout (72ce4eb)
• android: Restore inheritance workaround for android (0222291)
• Avoid error on SamplesApp.UITests (0641657)
• Avoid infinite layout loop in MediaTransportControls (dbca1b0)
• Button: Command binding resetting on CanExecution exception (82846ba)
• codegen: Adjust mvvm toolkit properties discovery (e94127f)
• Compare the right font in OnFontLoaded when FontFamily contains '#' (3843646)
• Correcly await async RunOnUIThread calls (7866edc)
• desktop will always build as WinEXE ([30437b8](https://github.com/unoplatform/Uno...

5.4.43

What's Changed

• fix: Dismiss the photo picker view controller earlier (backport #18475) by @mergify in #18482
• fix: Workaround non-UIElement UIViews in Grid layout (backport #18470) by @mergify in #18484

Full Changelog: 5.4.39...5.4.43

5.4.39

What's Changed

• Revert #18381 for layout android issues by @jeromelaban in #18412

Full Changelog: 5.4.38...5.4.39

5.4.38

What's Changed

• fix: adjust workaround for android popuppanel layout (backport #18277) by @mergify in #18343
• Adjust devserver inclusion when WinExe is selected (backport #17974) by @mergify in #18376
• fix: Port "non-clipping subtree" logic from WinUI (backport #18336) by @mergify in #18361
• Backport #18193 and #18377 by @jeromelaban in #18381
• fix(Button): Command binding resetting on CanExecution exception (backport #18378) by @mergify in #18388
• fix: Do not destroy the singleton Window for single-window targets (backport #18369) by @mergify in #18389
• fix: Make AutomationProperties bindable (backport #18306) by @mergify in #18394
• Misc test updates (backport #18387) by @mergify in #18396

Full Changelog: 5.4.27...5.4.38

5.4.27

What's Changed

• Adjust HR error messages when the debugger is active (backport #18270) by @mergify in #18273
• docs: Miscellaneous documentation fixes (backport #18316) by @mergify in #18323
• fix(codegen): Adjust mvvm toolkit properties discovery (backport #18326) by @mergify in #18334
• fix: Ensure wwwroot assets are copied properly (backport #18300) by @mergify in #18310

Full Changelog: 5.4.22...5.4.27

5.4.22

We are introducing over 290 new additions in the Uno Platform 5.4 release, with a strong focus on performance and resolving issues for our paid clients. Some of you might not know this, but we sustain the Uno Platform open-source project through enterprise support, as described in this blog. This release primarily addresses critical client issues, while simultaneously improving the overall performance of Uno Platform apps.

Head over to our blog post for more information!

As always, thanks to our contributors:

• Documentation updates by @mcNets, @ashleykmm1, @baskren, @lindexi, @Cjhemmer and @ArchieCoder
• Performance updates by @KevinFerati
• X11 support Improvements for Windowing and background colors by @lindexi

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Features

• 2-layer skia for GTK (d6493e7)
• 2-layer skia for WPF (7caa5d2)
• 2-layer skia for X11 (0af2c2b)
• Add GridViewAutomationPeers (effa40a)
• Add a generic Application.UnhandledException handler (f35388c)
• Add ability to not show the HR on-canvas indicator (917c03f)
• Add analyzer for missing packages when using ProgressRing or MPE (722b2e8)
• Add DiagnoscticsOverlay utility (fdfe38b)
• Add disagnostic indocator for hot-reload process (3d92130)
• Add entrance and exit animation of HR ui notif (ea10c3e)
• Add IsPointerCaptureRequired attached property (85abb78)
• Add ListBoxAutomationPeer (b2f4ff2)
• Add missing Windows.Graphics structs (8b52742)
• Add support for Keyboard Accelerator tooltips (5643e23)
• Add WPF SelfContained support (81022c2)
• add X11 support for reading DPI scaling from X resources (Xft.dpi) (83f1927)
• Adding new AppWindow APIs (c543197)
• Allow disabling generated Application.UnhandledException handler (621c298)
• always include Lottie on Desktop (41ed53a)
• android: Proper variable font support (2a53446)
• ApplicationDataCompositeValue (79fa08d)
• AppWindow Position and Size on WPF (7deb5fc)
• AppWindow Position, Size, Move and Resize on X11 (11d7217)
• Basic implementation for detecting layout cycles (f2b46b3)
• Bump Uno.Fonts to 2.4.5 (32102ee)
• devSrv: Prefer to connect on last known endpoint first (c8ebb9d)
• diags: Add ability for a diag view to send notifications (47bfa4d)
• embedding X11 windows as subwindows inside an Uno application (7202802)
• Font manifest (9f32857)
• hr: Improve perf and diagnostics per processing updates as batch (0a0d880)
• hrui: Always use notification for operations + add engine events to the log (a9e95bd)
• hrui: Improve HR indicator placement strategies (dacdfb4)
• hrui: Improve types output + open overlay by default (7935c03)
• hrui: Update HR notifications (8fc3672)
• imagebrush: add support for RelativeTransform on skia (2a0ed53)
• Implement FlipViewAutomationPeer (f536856)
• Implement GroupItemAutomationPeer (3a5671a)
• Implement ListBoxItemAutomationPeer (d28a0f7)
• Implement ListBoxItemDataAutomationPeer (777a9d8)
• Implement ListPickerFlyoutPresenterAutomationPeer (db69ab1)
• Implement RichEditBoxAutomationPeer (43db136)
• Implement RichTextBlockAutomationPeer (ca5cdd0)
• Implement RichTextBlockOverflowAutomationPeer (a73304c)
• Implement ScrollViewerAutomationPeer (c1707ef)
• Implement ScrollViewerAutomationPeer (2b3ab69)
• Implement SelectorItemAutomationPeer (a7a29f6)
• Implement SemanticZoomAutomationPeer (1714da1)
• Implement SliderAutomationPeer (b8041d9)
• Implement TextBoxAutomationPeer (dd78821)
• Implement ThumbAutomationPeer (9bfa9e9)
• Implement ToggleButtonAutomationPeer (ef52c88)
• Implement ToggleMenuFlyoutItemAutomationPeer (b515ef6)
• Implement ToggleSwitchAutomationPeer (3f72be5)
• Implement AppWindow Move and Resize on WASM (6abcdd8)
• Implement CreateDefaultValueCallback and PropertyMetadata factory methods (18e66f1)
• Implement font matching spec (e491dbf)
• Improve HR diag view (18cf119)
• Instrument dev-server to expose in diagnostics in client (8d2600b)
• Integrate the HR status (51f4ede)
• Internally implement TextAdapter (1028df4)
• iOS: add fileopenpicker file limit (ce2d123)
• ios: add webview2 inspectable feature (1663761)
• iOS: FileOpenPicker limit multiple file selection (a19cf32)
• iOS: validate for device version (c499ac1)
• Make breaking on unhandled exceptions opt-in ([dbd23f3](https://github.com/jeromelaba...

5.3.31

Hello Rider lovers!! We are bringing many additions to Uno Platform in this 5.3 release, but the highlight is official support for JetBrains Rider, as well as improved Hot Reload experience, two new UI controls (ItemsView, SelectorBar), exciting new options for Fonts, and adding support for SkiaSharp 3 preview, to name a few.

We’ve also spent significant effort into further simplifying Uno Platform versioning, so that you can spend more time coding and less time fiddling with NuGet packages. Lastly, we are continuing support for .NET 9 Preview releases and retiring support for .NET 7 as it is now officially not supported by Microsoft any longer.

Visit our blog post for more details!

Here's an extended list of features included in this release:

• Rider Plugin support
• Open Sans is now the default font for uno targets
• In-app Visual Feedback for HotReload
• SkiaSharp 3 Previews support
• All of Uno Platform is now versioned behind the Uno.Sdk
• Uno itself is now build with .NET 9
• Improved project reload in Visual Studio 2022 on target framework change to avoid closing opened editors
• ExtendIntoTitleBar on WPF
• PreviewKey<Down|Up> on Skia Desktop
• ScrollIntoView with using non-virtualizing ListViews
• Layout cycles detection
• ToolTips are now enabled by default on Skia
• Support for Implement FlyoutBase.OverlayInputPassThroughElement
• Skia Desktop on Linux support for drag and drop from other windows
• ItemsView support
• Modifiers on keyboard events on WASM
• MRT Core ResourceLoader support
• Skia Desktop support for Shape.StrokeDashArray and CompositionStrokeDashArray
• Support for Linux framebuffer terminal redirection
• New analyzer to detect if InitializeComponent is missing in a code-behind file
• Add Multi-Touch support on Skia Desktop on Windows
• Performance
  • resw resources trimming
  • Android startup performance improvements
• RenderTargetBitmap / Drag and Drop crash fix on Android
• Many rendering and interaction improvements to the Skia Desktop TextBox

And as always, many thanks to our contributors:

• Documents updates by @Cjhemmer, @ArchieCoder, @lindexi, @emmanuel-ferdman, @abduelhamit and @mcNets
• A Skia Desktop performance update by @KevinFerati
• CI improvements by @ceddy4395
• Pointer tests by @lindexi
• Skia Desktop pointers (multitouch, mouse) improvements for Windows and Linux by @lindexi

Features

• Add basic support for ContentSite and ContentSiteView (05dffe7)
• Add Microsoft.Windows.ApplicationModel.Resources interfaces and enums (82de40b)
• add support for ExtendIntoTitleBar on WPF (e7fe6f9)
• add support for PreviewKey<Down|Up> on skia (5c34158)
• add support for ScrollIntoView with using non-virtualizing ListViews (2fde55c)
• Add support for the Flyou.OverlayInputPassThroughElement on all platforms (7357b94)
• Add Uno.ResourceTrimmingValidator (e9f7c2b)
• adding alias for ExtensionsCore (7a336be)
• Adjust WASM to use XamlRoot.RasterizationScale (841a0e3)
• Avoid faux linear gradients on borders on iOS and macOS (9c139f7)
• Basic ContentIsland RasterizationScale support (e0e51ee)
• Basic implementation for detecting layout cycles (461d1f3)
• ContentIslandStateChangedEventArgs (9f19c40)
• Enable ToolTips on Skia by default (fdaebd3)
• FauxGradientBorderPresenter (ea291b8)
• flyout: Add sample for FlyoutBase.OverlayInputPassThroughElement (7a88c76)
• flyout: Implement FlyoutBase.OverlayInputPassThroughElement (c54cc2f)
• Implement AreAutomationPeerChildrenReversed on UIElement (993b68b)
• Implement new focus-related types (ed17993)
• Implement ScrollItemAdapter (fbcbeaa)
• Implement ScrollItemAdapter AccessKeyStringBuilder (636260e)
• implement the X Drag and Drop (XDnD) extension to accept dragging from other windows (f5295cc)
• introduce a new BorderVisual to handle rendering the border and the background. (d7dbf39)
• ItemsView (49bff4d)
• make UnoFeatures ignore casing (e873d73)
• only "repaint" Visuals that actually changed (ec00c67)
• pointers: Add support of pointer rerouting on Android (a409065)
• pointers: Support pass through on iOS (11ad2a5)
• Port ComboBoxAutomationPeer (325ee6d)
• Port FocusController (afea99b)
• Port FocusManager adapters from WinUI (05b5b4a)
• Port RootScale and related classes (30ab0b4)
• sdk: Add support for Apple Privacy Manifest (57fb9e3)
• Set modifiers on keyboard events on WASM (d42429b)
• set the Version (20e16f4)
• Simplified implementation of MRT Core ResourceLoader (ec0dc35)
• skia: Support Shape.StrokeDashArray and CompositionStrokeDashArray (c3c499f)
• Support composition keyframe animations (5277f0d)
• Support for SelectorBar and SelectorBarItem (9068f91)
• Support for SkiaSharp 3 (18e3798)
• Support for UIElementCollection.Move on Skia (cd661d4)
• Support ThemeResource in TargetNullValue and FallbackValue (7514964)
• textbox: add support for up/down arrow keys preserving the caret "position" (550be6b)
• textbox: variable Tab widths i.e. Tab stops (8b7e727)
• UnoInitializeComponentAnalyzer (583210a)
• Update Common theme resources (8fe36a1)
• Update RatingControl to winui3/release/1.4.2 (79fabac)
• Update ToolTip styles (c99767e)
• Upri resources trimming (6c0935a)
• Use XamlRoot.RasterizationScale in GTK renderers (267be8c)
  *...