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.

---

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 PopupPanel from VisualTreeHelper (6f486df)
• Do not warn about target platform order for libraries (1c86455)
• Don't include OpenSans for libraries (77af90e)
• Don't include packages on release builds (3e1ea3a)
• Don't invoke ApplyTemplate for collapsed elements (f885175)
• Don't invoke weak event target if the target is a collected peer reference (789bf9c)
• Downgrade BuildTools (593f794)
• dragdrop: don't fire Drop if AcceptedOperation is None (6d1c6fb)
• dragdrop: fire DragEnter and DragOver when firing DragStarting (33ea5a7)
• dragging: when a child and a parent subscribe to dragging, only fire on the child (f3afc4b)
• droid: TabView header not showing (0e5f8fe)
• Enable AllowUnsafeBlocks for winappsdk (9e244aa)
• Ensure Custom NumberFormatter is applied in NumberBox validation (7a43317)
• Ensure each test ends with non-keyboard input device (c60e172)
• Ensure element translation is applied after Loaded (db8bd3c)
• Ensure HttpRequestMessage.Headers are assigned when default ctor is used (b23b381)
• Fix HRI not being draggable (2c98967)
• Fix invalid code gen (361d014)
• Fix invalid code gen of top resource dictionnaries (275b16d)
• Fix invalid code gen when using markup extension in a style (aff3c8e)
• Fix lock contention in XAML generator during compilation (640ebba)
• Fix logging of add-in discovery (f453993)
• fix native element visibility (reset by clipping) (c297452)
• Fix regression in code gen (c3c48d2)
• Fix When_Window_Closed_Is_Handled on macOS/skia (0ea57fa)
• Fix x:Bind not applied properly (79ed849)
• Frame should throw on page exceptions (36fb076)
• GetCharacterIndexAtPoint throws if layout manager is null (97d9c7d)
• Grouped CollectionView enumeration (8144a16)
• Grouped CollectionView enumeration (f4fe4f0)
• hr: Always generate the Bindings class when HR is enabled (4ea7bce)
• hr: Avoid rude edit (beb33aa)
• hr: Disable partial reload on compatible targets (00f4a15)
• hr: Do not restore MSBuild properties in HR workspace (e15e967)
• hr: Fix invalid code gen for custom markup extensions (9613875)
• hr: Fix invalid gen for top level dic (55822b3)
• hr: Improve retry logic when using UpdateFile in case of NoChnages (f8d848b)
• hr: Restore udage of cnomua for resource dictionnaries (7a8536a)
• hr: Update HR conditions (f664ce4)
• hr: Use properties for subjects (4867046)
• image: clipping images on WASM was not working (f4ade32)
• Improve DateTimeFormatter template matching and mappings (484fac7)
• ios: negative margin clipped on device rotate (ca4a273)
• ios: negative margin clipped on device rotate (2a1c616)
• iOS: PersonPicture late binding (6944ff1)
• iOS: TabView Item selection when loading page (85c57eb)
• iOS: TabView Item selection when loading page (616315d)
• macos: add key modifiers to pointer event args (ff102bd)
• macOS: adjust scrollwheel speed for normal/PC mouses (1566858)
• macOS: Avoid an overflow which breaks drag-and-drop (d629518)
• macos: Bring window to top when activated (5bae5b2)
• macos: Bring window to top when activated (6f1da0e)
• macOS: native clip on the provided path/svg (026226b)
• macOS: OnWindowClosing should not reset cancel (aa41d5e)
• macOS: Prevent pointer over event originating from other window (dcfe4d9)
• macOS: Prevent pointer over event originating from other window (c1b2800)
• Make AutomationProperties bindable (23a5743)
• Make ImageStretch_None wait for images to actually load (8e6894b)
• Make KeyboardHelper use async consistently (908025e)
• Make the Popup logical parent of Child (7d558a7)
• mofidying .ts files only should embed the newly generated .js files (20c2d6f)
• Move to jsimport for bbox (00f3ced)
• net9: Add linker directives (4595bcb)
• net9: Allow for builds to happen even if a RID is explicitly set (840a5a7)
• netstd: late template application is ignored (2293898)
• NRE on favorite button (6bee805)
• Observe specific trait on RootViewController (c496a06)
• parse floating point values in svg path (ab73de5)
• Path: add support for Path.Data being a PathGeometry with some figures having IsFilled = false (7e4982d)
• PopupRoot is a Canvas (8b15fb0)
• Prefer logical parent over visual for ResourceDictionary enumeration (5a56ca6)
• reg: Fix _rootInstance field is always null (69b6aa1)
• reg: Fix ANdroid test not passing (3db1f2c)
• reg: Fix HR no allowing to remove x:Bind as first change (7aae564)
• reg: Fix invalid code gen (87c931a)
• Reset last input type before test execution (7f32505)
• resources: Don't reevaluate all resources on all measure (faad794)
• resources: Make the FrameworkElement.Resources property lazy initialized (e20718b)
• reverse clip and set fillrule to oddeven (f20b0b8)
• scrollviewer: fix scrollArgs.IsIntermediate on WASm (84c85fe)
• sdk: Adding MAUI and C# markup packages when enabled (fb5f508), closes #18700
• SdkExtras invalid implicit version (f5b2c55)
• SdkExtras invalid implicit version (bace519)
• sdk: Removing redundant packages (0397050)
• shapes ignoring clipping sometimes on Linux (a57c392)
• skia: support color animations (6b908aa)
• tests: Check_FontFallback_Shaping on macOS/skia (6f79a81)
• tests: Fix several Given_TextBox tests on macOS/skia (7e21bee)
• tests: Fix When_IsTextSelectionEnabled_Keyboard_SelectAll_Copy on macOS/skia (10e637e)
• tests: Fix When_Large_List_Scroll_To_End_Then_Back_Up_TryClick on macOS/skia (8be8374)
• tests: Fix When_Paste_While_Pointer_Held on macOS/skia (647a7ac)
• tests: Fix When_Scrolling_Updates_After_Backspace on macOS/skia (20df9bd)
• tests: Fix When_Selection_With_Keyboard_NoMod_Ctrl_And_Shift on macOS/skia (2316d6c)
• tests: Fix When_Undo_Redo_Keyboard_Basic on macOS/skia (ba5867b)
• tests: Tolerate 2 pixels diff (happens on CI) for Check_FontFallback_Shaping (431d124)
• tests: When_Copy_Paste on macOS/skia (dac31e8)
• tests: When_Ctrl_A on macOS/skia (3d19d61)
• tests: When_Ctrl_Backspace on macOS/skia (8fc014a)
• tests: When_Ctrl_Delete on macOS/skia (8547cbd)
• tests: When_Ctrl_Delete_Undo_Redo on macOS/skia (3e1c56c)
• tests: When_Ctrl_End_ScrollViewer_Vertical_Offset on macOS/skia (6acb0cd)
• tests: When_Ctrl_Home_End on macOS/skia (ff2386c)
• tests: When_Cut_Paste on macOS/skia (d5f60ec)
• textbox: BeforeTextChanging crashing ing in specific cases (819ccc2)
• textbox: losing focus on PointerUp when inside a Popup on WASM (066f89f)
• Track modifiers throughout key sequence (69a7287)
• Track the parent command bar for appbar buttons (740cc2c)
• Uno specific workaround for invalid assert in ComboBox (b6fd348)
• Use generated serializers for net9 wasm (eb817af)
• wasm: key tracking when no one is subscribing to Key<Down|Up> (542a226)
• wasm: unwanted preview shown when dragging over existing selection (2436ac6)
• wasm: workaround for invalid net9-browserwasm library detection (9bd0c1d)
• webview2: Adjust target platform selection for windows builds (5a5cdca)
• WriteableBitmap: Invalidation should cause a redrawing (107f0ba)
• x11: fix rendering when DPI scaling is less than 1 (c877936)
• xamlgenerator: fix syntax error when using x:Uid (6b6eb02)
• xLoad not updating bindings when a child sets x:Bind (bb6958f)

Reverts

• Revert "perf: Misc perf improvement to ResourceDictionary" (fbcb9f7)
• Revert "chore(docs): Update desktop/macOS publishing documentation" (231706b)
• Revert "fix(reg): Workaround Gallery measure issue on Android" (4ec754c)