AvaloniaUI/Avalonia 12.0.0 on GitHub

General

Read our release blog post for more information about Avalonia 12!

Useful links:

What's Changed

Changes since 12.0.0-rc2

CompositionAnimation fixes by @zxbmmmmmmmmm in #20936
AvnAccessibilityElement fixes by @jmacato in #21062
Measure/Arrange TextPresenter with WidthIncludingTrailingWhitespace by @Gillibald in #21067
Fix/linux atspi backend by @jmacato in #21072
Post NSAccessibility notifications for property changes on macOS by @jmacato in #21074
Fix access keys not working when KeySymbol is null by @NathanDrake2406 in #21077

Full Changelog since 12.0.0-rc2: 12.0.0-rc2...12.0.0

Changes since 11.3.13

Design improvements by @maxkatz6 in #18300
Add ability to cancel focus change by @emmauss in #18373
[X11] Added INCR support by @kekekeks in #18428
Don't round size in TextBlock when UseLayoutRounding is false by @appel1 in #18456
Fix MeasureCore when there's a size constraint and there's a negative… by @appel1 in #18462
Focus Traversal Api by @emmauss in #18647
Make sure that tests inherit from ScopedTestBase by @kekekeks in #18690
Update bug_report.yml by @timunie in #18711
Fix typo in PseudoClassesExtensions class name by @zdpcdt in #18717
feat: add TreeViewItemIndentConverter for dynamic margin calculation by @zdpcdt in #18718
Limit use of deprecated Android display API by @emmauss in #18722
Move android app initialization to custom application class by @emmauss in #18756
Add IAddChild to StyleBase to fix IDE errors when adding Style as children to ContainerQuery by @wieslawsoltes in #18800
Added missing class event handler methods by @TomEdwardsEnscape in #18837
fix WrapPanel comments by @ingts in #18862
Fixed core GotFocus and LostFocus handling being skippable by @TomEdwardsEnscape in #18868
Add IActivityApplicationLifetime for android by @emmauss in #18893
Fixes accumulated glitches in GpuInterop demo by @kekekeks in #18900
Add DrawingImage.Viewbox by @TomEdwardsEnscape in #18913
Bump ImageSharp to 2.1.10 by @drasticactions in #18924
Update azure-pipelines.yml (#18876) by @Gillibald in #18940
fix: Prevent DXGI from intercepting Alt+Enter and PrintScreen by @M0n7y5 in #18970
[Android] Do not underutilize CPU/GPU when can't keep up with refresh rate by @kekekeks in #18973
[ANDROID] Skip glWaitClient/glWaitGL/glWaitNative by @kekekeks in #18974
Implement IDispatcherImpl for Android based on Looper and MessageQueue by @kekekeks in #18975
[12.0] Target SkiaSharp 3.0. Drop 2.88 support by @maxkatz6 in #18981
Remove old linux hack by @kekekeks in #18989
Switch to using animation request for scroll inertia dispatch by @emmauss in #18997
Cleanup InvalidationAwareSurfaceView related code by @maxkatz6 in #19045
Fix WindowCloseReason Passed During System Shutdown by @lindexi in #19055
feat: expose Popup property in PopupFlyoutBase for external access. by @zdpcdt in #19106
Make CharacterReader internal. by @grokys in #19123
Fix typo: ExternalGLibMainLoopExceptionLogger by @Dragorn421 in #19128
Developer Documentation by @grokys in #19131
Remove PropertyPath. by @grokys in #19133
move to SDK 8.0.411 in global.json by @SimonCropp in #19136
remove some redundant returns by @SimonCropp in #19137
remove some duplicate dict lookups by @SimonCropp in #19138
remove Settings.StyleCop from sln by @SimonCropp in #19140
remove some un-used code by @SimonCropp in #19146
Feat/19059 add automation for validation error by @longbuibao in #19161
Capture ExecutionContext for Dispatcher.InvokeAsync by @walterlv in #19163
Rename "Documentation" subfolder into "docs" by @maxkatz6 in #19189
Improved NuGet package creation docs. by @grokys in #19196
Unify selection event handling for all SelectingItemsControl types plus TreeView by @TomEdwardsEnscape in #19203
Fix: Unable to input numbers, symbols, and English letters in Avalonia on X11 with fcitx5 ForwardKey messages by @SeWZC in #19207
Use hard links for build by @MrJul in #19209
Migrate AvaloniaNameSourceGenerator to IIncrementalGenerator by @maxkatz6 in #19216
Fix typo in XML documentation for ExtendClientAreaChromeHints enum by @Versette in #19245
Typos fix by @oktrue in #19257
Add GroupBox by @maxkatz6 in #19366
Implemented Dispatcher.Yield / Dispatcher.Resume by @kekekeks in #19370
Commit missing resource values by @maxkatz6 in #19371
Use VisualBrush for GroupBox Border by @drasticactions in #19372
[v12] Enable Mac Catalyst in Avalonia.iOS by @drasticactions in #19415
Update release instructions by @MrJul in #19417
Text API sample app by @miloush in #19455
Increase RemoteProtocolTests timeout by @MrJul in #19461
Fix comment for #19163 by @walterlv in #19469
Removed locks from Ref by @kekekeks in #19476
Improved API diff by @MrJul in #19490
Font features in test app by @miloush in #19493
Avoid processing frameworks in parallel in ValidateApiDiff by @MrJul in #19511
Fix BitmapInterpolationMode.HighQuality when downscaling by @MrJul in #19513
Update Nuke to v9 and fix ValidateApiDiff by @MrJul in #19529
Move IBinding to BindingBase and tidy up some binding APIs by @grokys in #19589
Ignore empty preeditText when no composition was active before (#19595) by @Gillibald in #19621
Fix: ChoreographerTimer should check for Android version correctly. by @IsaMorphic in #19643
DOCS: Add final newline to markdown files by @VbhvGupta in #19645
Limit InlineUIContainer to available width (#19651) by @Gillibald in #19675
Move ControlCatalog.MacCatalyst/tvOS to their own folders by @MrJul in #19709
Enable compiled bindings by default in Avalonia.props by @maxkatz6 in #19712
Run Avalonia.LeakTests on CI by @pos777 in #19720
Remove Tizen by @MrJul in #19722
Implement focus change only on release when using touch or pen input by @emmauss in #19753
Improve FontCollection customization by @Gillibald in #19756
Universal GlyphTypeface implementation by @Gillibald in #19852
Update to .NET 10 by @MrJul in #19869
Improve AvaloniaNameIncrementalGenerator error handling by @TomEdwardsEnscape in #19934
Changed FuncMultiValueConverter to take IList instead of IEnumerable by @zacfromaustinpowder in #19936
Modernise ControlCatalog XAML by @TomEdwardsEnscape in #19971
[Text] Properly handle DrawableRun.Baseline (#19896) by @Gillibald in #19983
[DesignerHost/HTML]: improve high-dpi screen behavior by @ijklam in #19996
feat: Handle Datavalidations on base class "Control" by @timunie in #20067
Fix TryCreateGlyphTypeface return on macOS with SkiaSharp 2.88 by @MrJul in #20084
Android - Directly use the surface window handle cached in InvalidationAwareSurfaceView instead of requesting new handles by @emmauss in #20093
Rewrite leak tests without dotMemory Unit by @MrJul in #20095
Remove Avalonia.Browser.Blazor by @maxkatz6 in #20105
Introduce TextOptions by @Gillibald in #20107
Remove netstandard2.0 from almost all projects by @MrJul in #20111
Remove Direct2D1 by @MrJul in #20132
Use Silk.NET in GpuInterop sample by @MrJul in #20133
Update dependencies by @MrJul in #20139
[Feature] Move LetterSpacing to TextElement as inherited attached property by @jsuarezruiz in #20141
Add screen orientation support for Linux DRM by @ThadHouse in #20154
Improve NuGet.Config by clearing all package source options to make it independent of global NuGet.Config by @Athari in #20169
Remove obsolete projects from solution filter file by @quanzhuo in #20178
Fix several issues with ExtendClientAreaToDecorationsHint on Windows by @MrJul in #20217
Use standalone Bun to build JS projects instead of NodeJS by @maxkatz6 in #20243
Fix dnx random failures by @MrJul in #20284
Restore integration tests by @MrJul in #20296
Add PlaceholderForeground property to TextBox, AutoCompleteBox, CalendarDatePicker, NumericUpDown by @jsuarezruiz in #20303
Fix common warnings by @MrJul in #20311
Split analyzers and code fixes into separate projects by @MrJul in #20312
Update .NET SDK to 10.0.101 by @Youssef1313 in #20322
Update to xunit.v3 by @Youssef1313 in #20331
Remove legacy Diagnostics project by @MrJul in #20332
Delete Direct2D1 test files by @MrJul in #20333
Update Nuke to v10 by @MrJul in #20345
Enable nullability in Base/Markup/Markup.Xaml unit tests by @MrJul in #20346
Fix NRE bug in TextShaperImpl.ShapeText on netstandard2.0 by @adams85 in #20369
Update NUnit to v4 by @MrJul in #20372
Enable nullability in Controls.UnitTests by @MrJul in #20373
Enable nullability in various test projects by @MrJul in #20374
Enable nullability in Avalonia.Native by @MrJul in #20378
Enable nullability in all samples by @MrJul in #20379
Fix ambiguous and dead inheritdoc links by @ScrubN in #20397
Fix Android obsolete warnings by @MrJul in #20412
Update CODE_OF_CONDUCT.md by @MikeCodesDotNET in #20417
Handle added packages in API diff by @MrJul in #20428
Fix some XML doc warnings by @MrJul in #20429
Fix ncrunch configuration. by @grokys in #20437
Move compiled bindings to Avalonia.Base. by @grokys in #20439
Add CompiledBinding.Create factory methods from LINQ expressions by @grokys in #20443
Fix android wrong inset safe area padding value after resume by @Shirasagi0012 in #20448
Implement scene delegate for iOS by @MrJul in #20454
Remove BinaryFormatter by @MrJul in #20455
Fix for HarfBuzz was missing by @timunie in #20456
Fix xUnit warnings in AnimationIterationTests by @MrJul in #20459
Fix Avalonia.Desktop.slnf compiling by @gehongyan in #20461
Fix NuGet warnings by @MrJul in #20466
Remove EnableUnsafeBinaryFormatterSerialization property by @MrJul in #20467
Update headless xUnit support to v3 by @MrJul in #20481
Composition system SP1 by @kekekeks in #20497
Enable warnings as errors by @MrJul in #20504
Fix typo in build.md by @mrlacey in #20513
Use net8.0 TFM for shipped build props by @kekekeks in #20518
Remove IInternalScroller and move IScrollable to Avalonia.Base by @MrJul in #20519
Remove IDataObject to IDataTransfer wrappers and related methods by @MrJul in #20521
Simplify text formatting constructors by @MrJul in #20527
Merge IGeometryContext and IGeometryContext2 by @MrJul in #20528
Make Screen abstract by @MrJul in #20529
Fix Android surface recreation by @kerams in #20538
Fix TabItem's Content inheriting TabControl's DataContext instead of TabItem's by @ptasev in #20541
Fixes several simple TODO12 by @MrJul in #20544
Add AlphaFormat to ILockedFramebuffer by @MrJul in #20556
Merge multiple interfaces related to rendering by @MrJul in #20557
Headless: use HarfBuzz by default by @MrJul in #20561
Merge IResourceHost2 into IResourceHost by @MrJul in #20576
Remove NativeMenuItemToggleType and NativeMenuBar.EnableMenuItemClickForwarding by @MrJul in #20577
Move ConstructorArgumentAttribute and remove BindingMode from ReflectionBinding constructor by @MrJul in #20589
Fix warnings and index bugs in ControlCatalog sample by @ThadHouse in #20590
Add IsAlive property to IRef by @MrJul in #20593
Make NUnit tests visible in Rider again by @MrJul in #20594
Remove AutoCompleteBox.BindingEvaluator by @MrJul in #20596
Make IPopupHost a private API by @MrJul in #20597
Headless NUnit: Handle async SetUp/TearDown by @MrJul in #20612
Remove obsolete members from Avalonia.Base by @MrJul in #20613
Remove obsolete members from Avalonia.Controls by @MrJul in #20617
Hide binding plugins and disable Data Annotations validation by default by @grokys in #20623
Remove obsolete members from various assemblies by @MrJul in #20628
Move GetWindowsZOrder to IWindowingPlatform by @MrJul in #20633
Fix Border clip regression by @kekekeks in #20648
Use KeySymbol for AccessKey by @MrJul in #20662
Fixed wrong Mac accessibility roles for List, ListItem, and StatusBar by @codecat in #20681
Make sure that adorners are actually correctly positioned in visual tree for TransformToVisual and friends by @kekekeks in #20691
Make TextBox.PlaceholderText accessible by @kirb in #20714
[macOS] Add NativeDock.Menu API for adding menu items to macOS dock icon by @drasticactions in #20634
[v12] Android - Remove redundant appbuilder methods in android, use AvaloniaActivity in toplevel classes by @emmauss in #20715
Introduce PresentationSource, move some responsibilities from TopLevel by @kekekeks in #20624
Add boundary check to HarfBuzzTextShaper by @rabbitism in #20716
Update BclLauncher.cs to use ArgumentList property by @tompnub in #19713
Fixed incorrect opacity stack handling by @kekekeks in #20730
macOS: Fix file dialogs in embedded views by @MrJul in #20719
Onboard onto Central Package Management by @dfederm in #20704
Add tooltips for settings in control catalog by @TeaDrivenDev in #20731
Handle GlyphTypeface creation exceptions by @MrJul in #20739
Handle font cmap format 13 by @MrJul in #20740
More changes for non-toplevel visual tree roots. by @kekekeks in #20732
Remove unused internal classes, methods, and comparers by @Evan260 in #20746
Fix menu memory leak by @MrJul in #20753
Implement AT-SPI2 Accessibility Backend by @jmacato in #20735
Support ExperimentalAttribute in XAML by @MrJul in #20765
Fix Toplevel not losing focus with native implementation deactivates. by @emmauss in #20768
Fix for GhostItems in virtualized ItemsControls like ListBox by @timunie in #20700
Fixed creation of files/folders in a subfolder, as well as its deletion on Android by @Paulsams in #20750
Fix CalendarDatePicker becoming unusable when closed programmatically by @Evan260 in #20756
Make RemoteServer/RemoteWidget internal by @MrJul in #20767
Use a default DesignEmHeight if the font doesn't have one by @MrJul in #20764
Make a few more things internal by @MrJul in #20772
iOS: fix universal link activation with scenes by @MrJul in #20752
Fix TopLevelHost mirroring RTL content by @MrJul in #20754
Add AppBuilder.UseTextShapingSubsystem by @MrJul in #20761
Create DiagnosticTextRenderer lazily by @MrJul in #20766
Fix font Weight/Stretch matching by @MrJul in #20773
Fix missing root automation peer in x11/atspi by @jmacato in #20775
Don't call FormattingObjectPool.VerifyAllReturned by @MrJul in #20774
CompiledBinding.Create must be AOT-compatible, even by using reflection by @maxkatz6 in #20776
Don't throw on unexpected iOS input by @kerams in #20728
Introduce Dispatcher.CurrentDispatcher, Dispatcher.FromThread, AvaloniaObject.Dispatcher by @kekekeks in #18686
Fix NativeControlHost not accounting for visual transforms in size calculation by @mfkl in #20785
Move Gesture events to InputElement by @emmauss in #20789
Themeable Client Window Decorations by @kekekeks in #20770
Include Avalonia.IntegrationTests.Win32 into desktop slnf by @kekekeks in #20797
Fix for remaining Ghost-Item in VirtualizationStackPanel by @timunie in #20784
Fix TextBox validation error persisting when reverting to same valid value by @Evan260 in #20780
Rename SystemDecorations to WindowDecorations since they aren't necessary "system". by @kekekeks in #20796
Add PopupOverlayLayer by @MrJul in #20751
Explicitly truncate when opening a stream for writing by @Frederisk in #20804
Add gesture CLR events to InputElement by @MrJul in #20806
Update SkiaSharp to 3.119.3-preview.1.1 by @MrJul in #20809
Bump Tmds.DBus.Protocol to version 0.90.3 by @jmacato in #20810
[iOS] Truncate file in IOSStorageFile.OpenWrite by @MrJul in #20807
Render target/surface housekeeping by @kekekeks in #20811
[Feature] Page-based navigation system by @jsuarezruiz in #20794
X11IconLoader needs to scale the icon into our hardcoded size by @kekekeks in #20817
Streamline drawn decorations management to avoid call ordering problems by @kekekeks in #20840
[Metal] Dispose GRBackendRenderTarget and @autoreleasepool for metal objects by @drasticactions in #20815
[Navigation] Fire Page lifecycle events after transitions complete, not before by @drasticactions in #20826
Fix pixel rounding and visual transforms in NativeControlHost by @mfkl in #20786
Find perfect match before nearest in font collection by @MrJul in #20851
Add automation landmarks to HamburgerMenu by @kirb in #20857
Fix TabControl DataContext issues when switching tabs by @grokys in #20856
[Feature] Add PipsPager Control by @jsuarezruiz in #20660
Update summaries for gesture events in InputElement by @luke-whos-here in #20862
Disable Animations processing when Visual's not visible redux by @jmacato in #20820
Translation property for CompositionVisual by @zxbmmmmmmmmm in #20836
Add FocusChangedEventArgs for GotFocus/LotFocus by @MrJul in #20859
Made GetMaxSizeFromConstraint a protected method by @codecat in #20877
Add /update-api and /api-diff commands by @maxkatz6 in #20887
Remove Uncompilable code guarded by platform defines by @emmauss in #20861
Use Numerge package by @maxkatz6 in #20892
Don't tick with render loop when app is idle by @kekekeks in #20873
Hide TextRange. It has no public usage. by @Gillibald in #20893
Make SelectionHandleType internal by @emmauss in #20908
Use the correct flag to determine if extra dirty rect needs to be combined with existing one by @kekekeks in #20896
Open FocusManager API by @MrJul in #20854
Allow TextSearch.TextBinding on non-controls. by @grokys in #20884
Defer default icon loading until Window is shown by @NathanDrake2406 in #20898
Validate layoutable Thickness properties to block NaN or infinite values by @TomEdwardsEnscape in #20899
Update .NET SDK to 10.0.201 by @MrJul in #20912
New HeadlessWindow.SetRenderScaling API by @maxkatz6 in #20888
Fix X11IconLoader exception for icons < 128px by @MrJul in #20914
X11: Fix clipboard bitmap transferred with INCR by @MrJul in #20895
Fix values of known atoms by @MrJul in #20894
Add WinForms message filter for Avalonia windows by @MrJul in #20814
Do not resolve markup extensions when resolving selector types by @dme-compunet in #20903
[Feature] Add gestures and WrapSelection (loops) support to Carousel by @jsuarezruiz in #20659
Restructure VisualLayerManager by @kekekeks in #20905
Added more Carousel samples by @jsuarezruiz in #20932
Add FindNextElementOptions.FocusedElement by @MrJul in #20930
Fix Windows Snap in BorderOnly mode by @MrJul in #20937
Make FlyoutBase.IsOpen a public StyledProperty by @NathanDrake2406 in #20920
[Feature] Expand Page-type navigation: CarouselPage by @jsuarezruiz in #20871
Fix TabItem.Icon type and add IconTemplate by @MrJul in #20939
Allow CanResize on macOS in BorderOnly mode by @MrJul in #20940
Update Placeholder properties to use TextBox as owner in NumericUpDown & ComboBox by @zdpcdt in #20929
Remove unnecessary style for fullscreen button by @rabbitism in #20934
Android - Query date modified for android storage folder by @emmauss in #20860
#20868 - virtualizingstackpanel, when viewport shrinks and grows agai… by @gentledepp in #20870
Add IconTemplate to Page and DrawerPage by @jsuarezruiz in #20946
Change visual brush for group box to grid by @emmauss in #20947
Make RoutedEvent nullable in event arguments by @MrJul in #20953
Fixed creating RenderTarget when using Vulkan backend by @abenedik in #20952
Remove UnstableAttribute from several RoutedEventArgs by @MrJul in #20955
Make Dispatcher.Yield use the current dispatcher by @MrJul in #20956
Animation PlaybackBehavior Implementation and Tests. by @jmacato in #20966
Rename PipsPager button theme APIs by @jsuarezruiz in #20954
Update packages by @MrJul in #20967
Revert MicroCom to 0.11.0 by @MrJul in #20975
Use CurrentDispatcher in DispatcherTimer and AvaloniaSynchronizationContext by @MrJul in #20957
Make Window.WindowState a direct property with (on some platforms) reliable values by @kekekeks in #20973
Add StyleKeyOverride for ContentPage by @emmauss in #20977
Add Page HeaderTemplate by @emmauss in #20982
Cache RenderScaling in PresentationSource by @MrJul in #20972
Add StyleOverrides for other Page types by @emmauss in #20985
X11: Handle ShowActivated=false by @MrJul in #20958
Design properties not being applied for user controls by @maxkatz6 in #20986
Fix ComboBox not displaying Text property validation by @ptasev in #20978
Add more gesture recognizer sample pages to ControlCatalog by @jsuarezruiz in #20983
QoL for ControlCatalog: add sidebar search, auto-sort, and default page selection by @kekekeks in #20987
Introduced "forced" CSD mode without app opting in by @kekekeks in #20976
Use the correct value for animations stopped during a visual tree detach by @MrJul in #20995
Remove LambdaExpression.Compile from CompiledBinding.Create by @MrJul in #20996
Add DrawerHeaderTemplate and DrawerFooterTemplate properties to DrawerPage by @jsuarezruiz in #21008
Include VisualLayerManager itself in layer lookup. by @rabbitism in #20999
Fix DrawerPage double footer on compact mode for Bottom/Top placement by @jsuarezruiz in #21004
Fix TabbedPage samples wrong icon by @jsuarezruiz in #21003
Fix Placeholder not visible by @shine1258 in #21024
Add SECURITY.md by @rabbitism in #21029
Added explicit background processing support to managed dispatcher impl by @kekekeks in #21025
Combine Ready/Corrupted into a single passthrough struct by @kekekeks in #21028
Change XInternAtoms call force-create atoms by @kekekeks in #21034
Rename AppBar controls by @jsuarezruiz in #21041
Apply optimizations in Avalonia Android by @jsuarezruiz in #20968
Fix Mouse pointer triggering focus change on pointer release. by @emmauss in #21009
Change DoDragDropAsync trigger event to PointerPressedEventArgs by @MrJul in #20988
Apply optimizations in Avalonia iOS by @jsuarezruiz in #20969
Expose allowed titlebar button actions from the platform implementation and respect them from drawn decorations by @kekekeks in #21035
Do not use visual children enumerator in TopLevelHost by @MrJul in #21048
Replaced raw COM pointers with smart ones by @kekekeks in #21001
Update readme.md by @MikeCodesDotNET in #21051
Touch Improvements to TextBox by @emmauss in #20848
Add keyboard navigation for overflow CommandBar popup by @jsuarezruiz in #21005
Improve CommandBar dynamic overflow separator handling by @jsuarezruiz in #21039
Fix FocusManager.FocusedElement on canceled/redirected focus by @MrJul in #21047
CompositionAnimation fixes by @zxbmmmmmmmmm in #20936
AvnAccessibilityElement fixes by @jmacato in #21062
Measure/Arrange TextPresenter with WidthIncludingTrailingWhitespace by @Gillibald in #21067
Fix/linux atspi backend by @jmacato in #21072
Post NSAccessibility notifications for property changes on macOS by @jmacato in #21074
Fix access keys not working when KeySymbol is null by @NathanDrake2406 in #21077

Full Changelog since 11.3.13: 11.3.13...12.0.0