Avalonia

Name: Avalonia
Author: AvaloniaUI

Languages & Runtimes

Develop Desktop, Embedded, Mobile and WebAssembly apps with C# and XAML. The future of .NET UI

Latest 11.3.20 · Aug 10, 2026by AvaloniaUIWebsite AvaloniaUI/Avalonia

Branches

12: 12.1.1Jul 29, 2026
11: 11.3.20Aug 10, 2026

Release activity

Release activity — 10 releases across 9 days since May 11, 2026. Each cell is one day; darker means more releases that day. Nothing is recorded before May 11, 2026. Older weeks are hidden at this screen width.
					Jun				Jul				Aug
Sunday		No releases on May 17, 2026	No releases on May 24, 2026	No releases on May 31, 2026	No releases on Jun 7, 2026	No releases on Jun 14, 2026	No releases on Jun 21, 2026	No releases on Jun 28, 2026	No releases on Jul 5, 2026	No releases on Jul 12, 2026	No releases on Jul 19, 2026	No releases on Jul 26, 2026	No releases on Aug 2, 2026	No releases on Aug 9, 2026	No releases on Aug 16, 2026	No releases on Aug 23, 2026
Monday	1 release on May 11, 2026	No releases on May 18, 2026	No releases on May 25, 2026	No releases on Jun 1, 2026	No releases on Jun 8, 2026	No releases on Jun 15, 2026	No releases on Jun 22, 2026	No releases on Jun 29, 2026	No releases on Jul 6, 2026	No releases on Jul 13, 2026	No releases on Jul 20, 2026	No releases on Jul 27, 2026	No releases on Aug 3, 2026	1 release on Aug 10, 2026	No releases on Aug 17, 2026	No releases on Aug 24, 2026
Tuesday	No releases on May 12, 2026	1 release on May 19, 2026	No releases on May 26, 2026	No releases on Jun 2, 2026	No releases on Jun 9, 2026	No releases on Jun 16, 2026	2 releases on Jun 23, 2026	No releases on Jun 30, 2026	No releases on Jul 7, 2026	No releases on Jul 14, 2026	No releases on Jul 21, 2026	No releases on Jul 28, 2026	No releases on Aug 4, 2026	No releases on Aug 11, 2026	No releases on Aug 18, 2026	No releases on Aug 25, 2026
Wednesday	No releases on May 13, 2026	No releases on May 20, 2026	1 release on May 27, 2026	No releases on Jun 3, 2026	No releases on Jun 10, 2026	No releases on Jun 17, 2026	No releases on Jun 24, 2026	No releases on Jul 1, 2026	No releases on Jul 8, 2026	No releases on Jul 15, 2026	No releases on Jul 22, 2026	1 release on Jul 29, 2026	No releases on Aug 5, 2026	No releases on Aug 12, 2026	No releases on Aug 19, 2026	No releases on Aug 26, 2026
Thursday	No releases on May 14, 2026	No releases on May 21, 2026	1 release on May 28, 2026	No releases on Jun 4, 2026	No releases on Jun 11, 2026	No releases on Jun 18, 2026	No releases on Jun 25, 2026	No releases on Jul 2, 2026	1 release on Jul 9, 2026	No releases on Jul 16, 2026	No releases on Jul 23, 2026	No releases on Jul 30, 2026	1 release on Aug 6, 2026	No releases on Aug 13, 2026	No releases on Aug 20, 2026
Friday	No releases on May 15, 2026	No releases on May 22, 2026	No releases on May 29, 2026	No releases on Jun 5, 2026	No releases on Jun 12, 2026	No releases on Jun 19, 2026	No releases on Jun 26, 2026	No releases on Jul 3, 2026	No releases on Jul 10, 2026	No releases on Jul 17, 2026	No releases on Jul 24, 2026	No releases on Jul 31, 2026	No releases on Aug 7, 2026	No releases on Aug 14, 2026	No releases on Aug 21, 2026
Saturday	No releases on May 16, 2026	No releases on May 23, 2026	No releases on May 30, 2026	No releases on Jun 6, 2026	No releases on Jun 13, 2026	No releases on Jun 20, 2026	No releases on Jun 27, 2026	No releases on Jul 4, 2026	No releases on Jul 11, 2026	No releases on Jul 18, 2026	No releases on Jul 25, 2026	No releases on Aug 1, 2026	No releases on Aug 8, 2026	No releases on Aug 15, 2026	No releases on Aug 22, 2026

10 releases since May 11, 2026, busiest day 2

Changelog

11.3.20

LatestAug 10, 2026 · 16 days ago

Fixed 1

macOS NSTextInputClient range handling and null dereference issues

From Avalonia

What's Changed

Fixes

macOS – Fix NSTextInputClient range handling and null dereference issues by @Gillibald in https://github.com/AvaloniaUI/Avalonia/pull/21885

Full Changelog: https://github.com/AvaloniaUI/Avalonia/compare/11.3.19...11.3.20

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11.3.19

Aug 6, 2026 · 19 days ago

Changed 1

Propagate Popup.IsHitTestVisible to IPopupImpl to skip hit-testing popups on the OS level if available

Fixed 2

Don't include non-text files in Roslyn's AdditionalFiles
Fix active window tracking on X11

From Avalonia

What's Changed

Enhancements

Core – Propagate Popup.IsHitTestVisible to IPopupImpl to skip hit-testing popups on the OS level if available by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21916

Fixes

XAML – Don't include non-text files in Roslyn's AdditionalFiles by @maxkatz6 in https://github.com/AvaloniaUI/Avalonia/pull/21729
X11 – Fix active window tracking by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21846

Full Changelog: https://github.com/AvaloniaUI/Avalonia/compare/11.3.18...11.3.19

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12.1.1

Jul 29, 2026 · 27 days ago

Added 4

Add ToolTip.ShouldUseOverlayLayer attached property
Allow single parameter with any type when binding to a method
Add UseWaylandWithFallback option
Expose AutomationId as resource-id for Android automation

Fixed 16

Fix Dispatcher.ReplaceImplementation
Reapply cached binding source values during UpdateTarget
Fix custom-hit-test optimization
Detach platform input when presentation source closes
Fix line break enumerator infinite loop
Fix EGL surface recreation after native handle changes
Fix stale _usedCache value that wasn't reset properly in compositor
Properly wire CompositionInterop.IsLost
Preserve lines at rounded fractional heights
Correct nested TreeViewItem selection behaviour on pointer release
Fix issues on SelectingItemsControls when items or control changes visibility
Stop HotKeyManager from triggering on hidden controls
Fix SplitView stealing BackRequested when its pane is closed
Fix CommandBar secondary visibility during overflow open
Fix AutoCompleteBox popup not closing on focus lost
Position popup using the screen containing the anchor point

From Avalonia

What's Changed

Enhancements

Controls – Add ToolTip.ShouldUseOverlayLayer attached property by @rabbitism in https://github.com/AvaloniaUI/Avalonia/pull/21830
XAML – Allow single parameter with any type when binding to a method by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21867
Wayland – Add UseWaylandWithFallback by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21734
Android – Expose AutomationId as resource-id for Android automation by @stevemonaco in https://github.com/AvaloniaUI/Avalonia/pull/21780

Fixes

Core – Fix Dispatcher.ReplaceImplementation by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21735
Core – Reapply cached binding source values during UpdateTarget by @NathanDrake2406 in https://github.com/AvaloniaUI/Avalonia/pull/21756
Core – Fix custom-hit-test optimization by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21769
Core – Detach platform input when presentation source closes by @NathanDrake2406 in https://github.com/AvaloniaUI/Avalonia/pull/21782
Core – Fix line break enumerator infinite loop by @rabbitism in https://github.com/AvaloniaUI/Avalonia/pull/21808
Core – Fix EGL surface recreation after native handle changes by @AB901 in https://github.com/AvaloniaUI/Avalonia/pull/21816
Core – Fix stale _usedCache value that wasn't reset properly in compositor by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21823
Core – Properly wire CompositionInterop.IsLost by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21824
Core – Preserve lines at rounded fractional heights by @NathanDrake2406 in https://github.com/AvaloniaUI/Avalonia/pull/21834
Controls – Correct nested TreeViewItem selection behaviour on pointer release by @TomEdwardsEnscape in https://github.com/AvaloniaUI/Avalonia/pull/21705
Controls – Fix some issues on SelectingItemsControls when items or control changes visibility by @timunie in https://github.com/AvaloniaUI/Avalonia/pull/20798
Controls – Stop HotKeyManager from triggering on hidden controls (#21708) by @1419323749 in https://github.com/AvaloniaUI/Avalonia/pull/21714
Controls – Fix SplitView stealing BackRequested when its pane is closed (#21740) by @gentledepp in https://github.com/AvaloniaUI/Avalonia/pull/21741
Controls – Fix CommandBar secondary visibility during overflow open by @NathanDrake2406 in https://github.com/AvaloniaUI/Avalonia/pull/21742
Controls – Fix AutoCompleteBox popup not closing on focus lost by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21749
Controls – Position popup using the screen containing the anchor point by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21750
Controls – Keep page in NavigationPage's logical tree until animation is complete by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21751
Controls – Fix SimpleTheme focus adorner contrast in dark mode by @iamvalenciia in https://github.com/AvaloniaUI/Avalonia/pull/21753
Controls – Fix ComboBox dropdown not scrolling to selected item when opened by @zrt2399 in https://github.com/AvaloniaUI/Avalonia/pull/21764
Controls – Allow Grid shared size groups to shrink by @NathanDrake2406 in https://github.com/AvaloniaUI/Avalonia/pull/21837
Controls – Fix ListBox crash when scrolling after item removal by @NathanDrake2406 in https://github.com/AvaloniaUI/Avalonia/pull/21838
Controls – Clear TextBox undo history on external text updates by @NathanDrake2406 in https://github.com/AvaloniaUI/Avalonia/pull/21839
Controls – Register Grid assigned definition collections with their shared size group by @NathanDrake2406 in https://github.com/AvaloniaUI/Avalonia/pull/21848
Controls – Initialize TextBox command states in constructor by @zrt2399 in https://github.com/AvaloniaUI/Avalonia/pull/21859
Controls – Fix infinite loop in tab stop search with TabNavigation=Once by @maggch97 in https://github.com/AvaloniaUI/Avalonia/pull/21864
Controls – Handle Padding correctly in ScrollContentPresenter by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21872
XAML – Respect disabled Avalonia name generator by @mklts in https://github.com/AvaloniaUI/Avalonia/pull/21804
XAML – Support {Binding ^} pattern for IObservable DataContext by @rabbitism in https://github.com/AvaloniaUI/Avalonia/pull/21812
Windows – Fix Vulkan popup transparency by @the-bla in https://github.com/AvaloniaUI/Avalonia/pull/21802
macOS – Fix IME preedit lost on focus change by @hyunq21 in https://github.com/AvaloniaUI/Avalonia/pull/21601
macOS – Fix off-thread accessibility hit-test crash by @VicChelaru in https://github.com/AvaloniaUI/Avalonia/pull/21779
macOS – Fix app activation by @JakobScholer in https://github.com/AvaloniaUI/Avalonia/pull/21799
X11 – Fix active window tracking by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21846
X11/Wayland – Fix DBusPlatformSettings NullReferenceException by @pos777 in https://github.com/AvaloniaUI/Avalonia/pull/21831
Wayland – Report disposed WaylandEglWsiSurface render target by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21857
Wayland – Destroy transient framebuffer SHM pools by @jmacato in https://github.com/AvaloniaUI/Avalonia/pull/21870
Android – Fix multiline TextBox IME offsets by @AlexSCcon in https://github.com/AvaloniaUI/Avalonia/pull/21680
iOS – Block external roles from activating UIScene by @drasticactions in https://github.com/AvaloniaUI/Avalonia/pull/21844
Headless – Fix headless session hang when cleanup throws by @NathanDrake2406 in https://github.com/AvaloniaUI/Avalonia/pull/21781

Full Changelog: https://github.com/AvaloniaUI/Avalonia/compare/12.1.0...12.1.1

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12.1.0

Jul 9, 2026 · about 2 months ago

Added 13

Allow setting ThemeVariant to Default to reset theme to system on Android
Allow Dispatcher to be converted to a TaskScheduler
Add Scrollbar context menu
Add custom CalendarDatePicker date parsing to allow for multiple user input formats
Implement TableView control
Implement IStorageProvider.OpenFileWithResultAsync
Implement Bitmap.Save with a format
Implement Win32Properties.WindowCornerPreference
Implement automatic fps detection on X11
Implement XDND drag-and-drop support for Linux
Implement Wayland protocol support
Add platform feedback API for sound and haptic feedback on Android and iOS
Create Avalonia.WinUI for initial WinUI embed support

Changed 7

Remove obsolete int32 limit on DispatcherTimer.Interval
Bump MicroCOM and use source generators
Allow attaching a platform-specific event cookie to platform events
Align Touch and Pen capture semantics with Mouse
Disable region dirty rect clipping by default
Enable stencil buffers by default with configurable option
Support rendering at max refresh rate of current displays on Windows

Fixed 1

Improve composition hit testing performance with per-visual AABBs

From Avalonia

General

Read our release blog post for more information about new features in Avalonia 12.1.0!

What's Changed

Enhancements

Core – Allow setting ThemeVariant to Default to reset theme to system on android by @emmauss in https://github.com/AvaloniaUI/Avalonia/pull/16340
Core – Allow Dispatcher to be converted to a TaskScheduler by @TomEdwardsEnscape in https://github.com/AvaloniaUI/Avalonia/pull/21032
Core – Remove obsolete int32 limit on DispatcherTimer.Interval by @TomEdwardsEnscape in https://github.com/AvaloniaUI/Avalonia/pull/21113
Core – Bump MicroCOM and use source generators by @maxkatz6 in https://github.com/AvaloniaUI/Avalonia/pull/21218
Core – Improve composition hit testing performance with per-visual AABBs by @hez2010 in https://github.com/AvaloniaUI/Avalonia/pull/21310
Core – Tests/render data drawing context coverage by @ZehMatt in https://github.com/AvaloniaUI/Avalonia/pull/21341
Core – Align Touch/Pen capture semantics with Mouse (#21325) by @miloush in https://github.com/AvaloniaUI/Avalonia/pull/21363
Core – Refactor per-draw render data allocations with a binary opcode stream by @ZehMatt in https://github.com/AvaloniaUI/Avalonia/pull/21366
Core – Allow attaching a platform-specific event cookie to platform events by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21378
Core – Pass original logical size to render targets by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21380
Core – Pass shadow extents to the platform by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21385
Core – A bit better handling of gpu context loss by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21387
Core – Platform event to toggle drawn decorations state by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21388
Core – Use eglGetProcAddress instead of NativeLibrary.TryGetExport by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21392
Core – Support desktop OpenGL profiles via EGL by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21393
Core – Implement IStorageProvider.OpenFileWithResultAsync by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21418
Core – Implement Bitmap.Save with a format by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21455
Core – Disable region dirty rect clipping by default by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21553
Core – Enable stencil buffers by default + add configurable option by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21586
Core – avoid SKBitmap.Copy when creating ImmutableBitmap from pixels by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21675
Core – Generate a CycloneDX SBOM per published NuGet package by @grokys in https://github.com/AvaloniaUI/Avalonia/pull/21681
Core – Composition-aware geometries and drawing change detection by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21682
Controls – Improve pull-to-refresh usability in RefreshContainer by @gentledepp in https://github.com/AvaloniaUI/Avalonia/pull/18617
Controls – Add Scrollbar Context Menu by @drasticactions in https://github.com/AvaloniaUI/Avalonia/pull/19413
Controls – Add custom CalendarDatePicker date parsing to allow for multiple user input formats by @Deadpikle in https://github.com/AvaloniaUI/Avalonia/pull/21193
Controls – Implement TableView by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21511
Controls – Show checkerboard background for transparent ColorView palette items by @Jaex in https://github.com/AvaloniaUI/Avalonia/pull/21613
Controls – Allow copying and cutting revealed TextBox passwords by @zrt2399 in https://github.com/AvaloniaUI/Avalonia/pull/21710
Windows – Optimize rendering performance by reducing premultiplied AlphaMode by @lindexi in https://github.com/AvaloniaUI/Avalonia/pull/20757
Windows – Create Avalonia.WinUI for initial WinUI embed support by @drasticactions in https://github.com/AvaloniaUI/Avalonia/pull/21430
Windows – Implement Win32Properties.WindowCornerPreference by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21615
Windows – Support rendering at max refresh rate of current displays by @emmauss in https://github.com/AvaloniaUI/Avalonia/pull/21643
Windows – Let GraphicsAdapterSelectionCallback see unfiltered adapters and warn on Adreno WARP fallback by @nickna in https://github.com/AvaloniaUI/Avalonia/pull/21695
X11 – Implement automatic fps detection by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/18558
X11 – Implement XDND: drag-and-drop support for Linux by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/20926
X11/Wayland – Update to latest Tmds.DBus.Protocol by @tmds in https://github.com/AvaloniaUI/Avalonia/pull/21472
X11/Wayland – Better platform window handle abstraction for DBusSystemDialog by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21379
X11/Wayland – Introduce cross-thread support for AutomaticRawEventGrouperDispatchQueue by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21386
X11/Wayland – Workarounds for NVIDIA EGL drivers by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21590
Wayland – Wayland-specific handling for platform surface readiness by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21382
Wayland – Roslyn generator for generating cross-thread call proxies by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21384
Wayland – Wayland protocol support by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21448
Wayland – Added GLib event loop support to wayland backend by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21669
Android/iOS – Add platform feedback api for sound and haptic feedback by @emmauss in https://github.com/AvaloniaUI/Avalonia/pull/21189
Android – Use BCL storage for TryGet api by @emmauss in https://github.com/AvaloniaUI/Avalonia/pull/21641

Fixes

Core – Remove dead code in AvaloniaObject by @grokys in https://github.com/AvaloniaUI/Avalonia/pull/21452
Core – Fix text selection brush not applying when text selection changes by @emmauss in https://github.com/AvaloniaUI/Avalonia/pull/21480
Core – Fix RequestedThemeVariant default value by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21624
Core – Rework text fallback itemization by @Gillibald in https://github.com/AvaloniaUI/Avalonia/pull/21631
Core – InterWordJustification fixes by @Gillibald in https://github.com/AvaloniaUI/Avalonia/pull/21701
Core – Fix BclLauncher.Exec throwing instead of returning false by @Misaka-L in https://github.com/AvaloniaUI/Avalonia/pull/21704
Controls – Return false by default from FocusManager.CanHaveFocusableChildren by @freddiesmartbox in https://github.com/AvaloniaUI/Avalonia/pull/21640
Controls – Fix SelectableTextBlock selection offset with InlineUIContainer by @JoshuaRowePhantom in https://github.com/AvaloniaUI/Avalonia/pull/21646
Controls – Fix PART_OnContentPresenter name typo in ToggleSwitch by @zrt2399 in https://github.com/AvaloniaUI/Avalonia/pull/21728
XAML – Compiled Bindings: Fix unpredictable binding to method selection by @maxkatz6 in https://github.com/AvaloniaUI/Avalonia/pull/21617
XAML – Don't include non-text files in Roslyn's AdditionalFiles by @maxkatz6 in https://github.com/AvaloniaUI/Avalonia/pull/21729
Windows – Fix TopMost handling for Popups by @StefanKoell in https://github.com/AvaloniaUI/Avalonia/pull/17841
Windows – Support decimal in automation ComVariant (fixes NumericUpDown crash under UIA) by @valentino-saitz-optris in https://github.com/AvaloniaUI/Avalonia/pull/21634
Windows – Respect IME preedit cursor position by @gotoh in https://github.com/AvaloniaUI/Avalonia/pull/21632
Windows – Align ExpandCollapseState member order with UIA by @jmacato in https://github.com/AvaloniaUI/Avalonia/pull/21693
Windows – Fix working area changed won't update screen by @Misaka-L in https://github.com/AvaloniaUI/Avalonia/pull/21707
Windows – Fix empty automation bounds for custom root providers by @jmacato in https://github.com/AvaloniaUI/Avalonia/pull/21730
X11 – Fix mishandled cancellation in DBusTextInputMethodBase by @deryaza in https://github.com/AvaloniaUI/Avalonia/pull/21527
X11 – Re-read _NET_WORKAREA on WM PropertyNotify by @lambgoesbaa in https://github.com/AvaloniaUI/Avalonia/pull/21651
X11 – Fix XEmbed client by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21677
Android – TalkBack should still respond to all hover events by @IsaMorphic in https://github.com/AvaloniaUI/Avalonia/pull/21644
Android – TalkBack should highlight controls instead of their ancestors by @IsaMorphic in https://github.com/AvaloniaUI/Avalonia/pull/21654
Android – Fix crash populating accessibility node for some peers by @mikegoatly in https://github.com/AvaloniaUI/Avalonia/pull/21726
Android – Fix AvaloniaView double root creation by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21738
Browser – Fix typo: verityPermissions -> verifyPermissions by @Frederisk in https://github.com/AvaloniaUI/Avalonia/pull/21281
Headless – Fix hang if exception is thrown during headless session app construction by @ThadHouse in https://github.com/AvaloniaUI/Avalonia/pull/21688

Misc

Samples – Update ControlCatalog to use the Page system by @emmauss in https://github.com/AvaloniaUI/Avalonia/pull/21044
Samples – Fix OpenGL Lease page not showing in ControlCatalog by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21198
Samples – Improve ControlCatalog sidebar search by @jsuarezruiz in https://github.com/AvaloniaUI/Avalonia/pull/21236
Samples – ControlCatalog: improve transparent appearance by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21441
Infra – Reset API suppressions by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21106
Infra – update .gitignore for left over generated files, and VS Code C# Dev Kit *.lscache by @Shirasagi0012 in https://github.com/AvaloniaUI/Avalonia/pull/21228
Infra – Link to integration tests readme by @miloush in https://github.com/AvaloniaUI/Avalonia/pull/21329
Infra – Adjust build instructions by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21397

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12.0.5

Jun 23, 2026 · 2 months ago

Added 11

Implement Unicode word segmentation and update to Unicode v17
Expose Calendar day button selection state to automation
Expose menu item toggle state to automation
Support Value pattern on editable ComboBox automation peer
Add AX BringIntoView/AXScrollArea role on macOS
Expose ScrollViewer scroll bars to accessibility on macOS
Report read-only value state to accessibility on macOS
Expose tree item selection to accessibility on macOS
Expose placeholder text as the AT-SPI placeholder-text attribute on X11
Add support for hover events on Android
Add sleep timer option to Headless

Changed 4

Unicode and text layout optimizations
Enhance Roslyn-compiler visible metadata
Fall back to pixel location when GetPointerDeviceRects is unavailable
Synchronize Metal drawable presentation on macOS

Fixed 5

Fix culture aware font matching
Fix TextCollapsingProperties bidirectional-text (BiDi) correctness
Fix NotificationCard pseudo class state when NotificationType changes
Apply placeholder opacity to combobox placeholder textblock
Fix radio button disabled fill and stroke brushes

From Avalonia

What's Changed

Enhancements

Core – Implement Unicode word segmentation and update to Unicode v17 by @JimBobSquarePants in https://github.com/AvaloniaUI/Avalonia/pull/21361
Core – Unicode and text layout optimizations by @Gillibald in https://github.com/AvaloniaUI/Avalonia/pull/21400
Core – Expose Calendar day button selection state to automation by @jmacato in https://github.com/AvaloniaUI/Avalonia/pull/21540
Core – Expose menu item toggle state to automation by @jmacato in https://github.com/AvaloniaUI/Avalonia/pull/21541
Core – Support Value pattern on editable ComboBox automation peer by @jmacato in https://github.com/AvaloniaUI/Avalonia/pull/21545
XAML – Enhance Roslyn-compiler visible metadata by @maxkatz6 in https://github.com/AvaloniaUI/Avalonia/pull/21546
Windows – Fall back to pixel location when GetPointerDeviceRects is unavailable by @Symbai in https://github.com/AvaloniaUI/Avalonia/pull/21337
macOS – Add AX BringIntoView/AXScrollArea role by @jmacato in https://github.com/AvaloniaUI/Avalonia/pull/21457
macOS – Synchronize Metal drawable presentation by @drasticactions in https://github.com/AvaloniaUI/Avalonia/pull/21588
macOS – Expose ScrollViewer scroll bars to accessibility by @jmacato in https://github.com/AvaloniaUI/Avalonia/pull/21596
macOS – Report read-only value state to accessibility by @jmacato in https://github.com/AvaloniaUI/Avalonia/pull/21597
macOS – Expose tree item selection to accessibility by @jmacato in https://github.com/AvaloniaUI/Avalonia/pull/21598
X11 – Expose placeholder text as the AT-SPI placeholder-text attribute by @jmacato in https://github.com/AvaloniaUI/Avalonia/pull/21554
Android – Add support for hover events on android by @emmauss in https://github.com/AvaloniaUI/Avalonia/pull/21551
Headless – Add sleep timer option by @maxkatz6 in https://github.com/AvaloniaUI/Avalonia/pull/21423

Fixes

Core – Fix culture aware font matching by @Gillibald in https://github.com/AvaloniaUI/Avalonia/pull/21435
Core – Fix TextCollapsingProperties bidirectional-text (BiDi) correctness by @Gillibald in https://github.com/AvaloniaUI/Avalonia/pull/21446
Core – Fix NotificationCard pseudo class state when NotificationType changes by @zrt2399 in https://github.com/AvaloniaUI/Avalonia/pull/21490
Core – Apply placeholder opacity to combobox placeholder textblock by @emmauss in https://github.com/AvaloniaUI/Avalonia/pull/21493
Core – Fix radio button disabled fill and stroke brushes by @emmauss in https://github.com/AvaloniaUI/Avalonia/pull/21495
Core – Listen to layout changes for ancestor visuals in text selection canvas by @emmauss in https://github.com/AvaloniaUI/Avalonia/pull/21536
Core – Fix caption button background in dark mode by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21555
Core – Fix system font caching when retrieved with a different name by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21557
Core – Fix StackOverflow when a NaN offset is set on ScrollViewer by @NicholasLachapelle in https://github.com/AvaloniaUI/Avalonia/pull/21558
Core – Avoid read-only editing side effects in TextBox keyboard handlers by @zrt2399 in https://github.com/AvaloniaUI/Avalonia/pull/21587
Core – Fix TimePicker selection style by @shine1258 in https://github.com/AvaloniaUI/Avalonia/pull/21626
Core – Suppress culture flowing with ExecutionContext captured by DispatcherOperation by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21627
XAML – Fix some AOT warnings by @maxkatz6 in https://github.com/AvaloniaUI/Avalonia/pull/21616
XAML – Fix typo in key assignment for reference assembly by @collindang88 in https://github.com/AvaloniaUI/Avalonia/pull/21474
Windows – Fix window animations in extended mode by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21498
Windows – Fix WinUiCompositorConnection deadlock by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21591
macOS – Map ListItem accessibility peer to AXRow by @jmacato in https://github.com/AvaloniaUI/Avalonia/pull/21537
macOS – Fix AXLayoutChanged notifications dropped for template-internal peers by @jmacato in https://github.com/AvaloniaUI/Avalonia/pull/21595
macOS – Fix accessibility read-only, selection, and expand/collapse actions by @jmacato in https://github.com/AvaloniaUI/Avalonia/pull/21599
macOS – Handle replacementRange in AvnView by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21608
X11 – Fix BorderOnly window resizing by @ruddypp in https://github.com/AvaloniaUI/Avalonia/pull/21579
X11 – Fix ClipboardUriListHelper not flushing by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21589
X11 – AT-SPI: SelectChild should add to the selection instead of replacing it by @jmacato in https://github.com/AvaloniaUI/Avalonia/pull/21602
X11 – AT-SPI: Expose list item containers as accessible children by @jmacato in https://github.com/AvaloniaUI/Avalonia/pull/21605
X11 – Fix invisible window when un-minimizing by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21614
Android – Fix AndroidStorage.TryGetFile/FolderFromPathAsync returning null or throwing by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21628
Browser – Fix file picker crashing while listing entries of folders by @emmauss in https://github.com/AvaloniaUI/Avalonia/pull/21449
Browser – Ensure sync context is set before running dispatcher messages by @emmauss in https://github.com/AvaloniaUI/Avalonia/pull/21462
Browser – Fix Firefox drag-and-drop: handle effectAllowed=uninitialized by @Der-Floh in https://github.com/AvaloniaUI/Avalonia/pull/21486
Browser – Check permissions before reading or writing to clipboard by @emmauss in https://github.com/AvaloniaUI/Avalonia/pull/21573

Full Changelog: https://github.com/AvaloniaUI/Avalonia/compare/12.0.4...12.0.5

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11.3.18

Jun 23, 2026 · 2 months ago

Changed 1

Enhance Roslyn-compiler visible metadata for XAML

Fixed 2

Fix StackOverflow when a NaN offset is set on ScrollViewer
Handle replacementRange in AvnView on macOS

From Avalonia

What's Changed

Enhancements

XAML – Enhance Roslyn-compiler visible metadata by @maxkatz6 in https://github.com/AvaloniaUI/Avalonia/pull/21546

Fixes

Core – Fix StackOverflow when a NaN offset is set on ScrollViewer by @NicholasLachapelle in https://github.com/AvaloniaUI/Avalonia/pull/21558
macOS – Handle replacementRange in AvnView by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21608

Full Changelog: https://github.com/AvaloniaUI/Avalonia/compare/11.3.17...11.3.18

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12.0.4

May 28, 2026 · 3 months ago

Added 2

Add missing AutomationPeers from built-in Controls
Add accessibility events for expand and collapse events on macOS

Changed 7

Bump ANGLE version and sign native binaries
Update XML documentation to reflect correct type references in Avalonia.Controls project
Align Touch/Pen capture semantics with Mouse
Fire property-changed events when AutomationId changes at runtime
Update SkiaSharp to 3.119.4
Implement TextRunCache for performance improvement
Improve type caching in the XAML compiler

Fixed 11

Fix CommandBar overflow labels when label position is collapsed
Fix RenderTargetBitmap losing effects
Fix SelectionChanged not raised on collection reset
Ensure system back event is passed to child page once
Make sure TryGetGlyphTypeface does not fail for concurrent access
Avoid exceptions when getting a position from a PointerEventArgs
Make text in NumericUpDown update immediately when changing the TextConverter
Fix double reorder of cached bidi runs
Set WindowDrawnDecorations background to transparent
Fix radio MenuItem grouping in MenuFlyout
Fix popup positioning anchor rect bug with drawn window decorations

From Avalonia

What's Changed

Enhancements

Core – Bump ANGLE version + sign native binaries by @maxkatz6 in https://github.com/AvaloniaUI/Avalonia/pull/21219
Core – Update XML documentation to reflect correct type references in Avalonia.Controls project by @rabbitism in https://github.com/AvaloniaUI/Avalonia/pull/21283
Core – Add missing AutomationPeers from built-in Controls by @jmacato in https://github.com/AvaloniaUI/Avalonia/pull/21322
Core – Align Touch/Pen capture semantics with Mouse by @miloush in https://github.com/AvaloniaUI/Avalonia/pull/21325
Core – Fire property-changed events when AutomationId changes at runtime by @dimension-zero in https://github.com/AvaloniaUI/Avalonia/pull/21374
Core – Update SkiaSharp to 3.119.4 by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21434
macOS – Add accessibility events for expand & collapse events by @codecat in https://github.com/AvaloniaUI/Avalonia/pull/21043

Performance

Core – Implement TextRunCache by @Gillibald in https://github.com/AvaloniaUI/Avalonia/pull/21030
XAML – Improve type caching in the XAML compiler by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21408

Fixes

Core – Fix CommandBar overflow labels when label position is collapsed by @jsuarezruiz in https://github.com/AvaloniaUI/Avalonia/pull/21226
Core – Fix RenderTargetBitmap losing effects by @timunie in https://github.com/AvaloniaUI/Avalonia/pull/20790
Core – Fix SelectionChanged not raised on collection reset by @NathanDrake2406 in https://github.com/AvaloniaUI/Avalonia/pull/20942
Core – Ensure system back event is passed to child page once by @emmauss in https://github.com/AvaloniaUI/Avalonia/pull/21246
Core – Make sure TryGetGlyphTypeface does not fail for concurrent access by @Gillibald in https://github.com/AvaloniaUI/Avalonia/pull/21269
Core – Avoid exceptions when getting a position from a PointerEventArgs by @TomEdwardsEnscape in https://github.com/AvaloniaUI/Avalonia/pull/21301
Core – Make text in NumericUpDown update immediately when changing the TextConverter by @cdytoby in https://github.com/AvaloniaUI/Avalonia/pull/21320
Core – Fixes double reorder of cached bidi runs by @Gillibald in https://github.com/AvaloniaUI/Avalonia/pull/21351
Core – Set WindowDrawnDecorations background to transparent by @ent3m in https://github.com/AvaloniaUI/Avalonia/pull/21354
Core – Fix radio MenuItem grouping in MenuFlyout by @zrt2399 in https://github.com/AvaloniaUI/Avalonia/pull/21356
Core – Fix popup positioning anchor rect bug with drawn window decorations by @kekekeks in https://github.com/AvaloniaUI/Avalonia/pull/21383
Core – Make cursor respect the captured element by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21421
Core — Add a resource for title bar background by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21440
XAML – Fix compiled binding DataContext inference in ItemTemplate by @JoaoMSSCruz in https://github.com/AvaloniaUI/Avalonia/pull/21248
Windows – Run file picker on dedicated STA thread to avoid MTA deadlock by @ZehMatt in https://github.com/AvaloniaUI/Avalonia/pull/21266
Windows – Fix borders and shadows on Windows 10 in extended mode by @MrJul in https://github.com/AvaloniaUI/Avalonia/pull/21412
Windows – Include border size in GetMinMax request by @emmauss in https://github.com/AvaloniaUI/Avalonia/pull/21420
Windows – Fix UIA tree not visible for Avalonia content embedded via WinFormsAvaloniaControlHost by @AndreyPolovodov in https://github.com/AvaloniaUI/Avalonia/pull/21422
macOS – Fix DeviceLuid byte ordering on GPU interop by @dirivero in https://github.com/AvaloniaUI/Avalonia/pull/21293
X11 – Observe potential DBus exception in UnregisterWindowAsync by @holdxen in https://github.com/AvaloniaUI/Avalonia/pull/21344
X11 – Update Avalonia.DBus submodule by @jmacato in https://github.com/AvaloniaUI/Avalonia/pull/21419
Android – Fix File properties by @emmauss in https://github.com/AvaloniaUI/Avalonia/pull/21307
Android – Correct usage of PointToScreen for Android TalkBack by @IsaMorphic in https://github.com/AvaloniaUI/Avalonia/pull/21402
iOS – Drain UISceneConnectionOptions on cold launch by @koblavi in https://github.com/AvaloniaUI/Avalonia/pull/21394
Headless – Fix xUnit headless tests losing TestContext on background thread by @mikegoatly in https://github.com/AvaloniaUI/Avalonia/pull/21357