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Release Notes

XPF 1.6.0 (2026-01-19)​

  • Avalonia version updated from 11.3.1 to 11.3.11
  • Major rework has been done in the following areas:
    • Mouse capture and loss of capture
    • Clipboard (bitmap support, custom formats, round-tripping)
  • Added support for Ctrl+Click on macOS, F10 as system key
  • Added support for System.Windows.Documents.Typography properties
  • Added support for filter index in file dialogs
  • Popup fixes (positioning, disabled when dialog shown)
  • MessageBox functionality aligned with Windows (title, max size)
  • Text fixes and improvements (line spacing, inline blocks, font loading and matching)
  • Automation fixes and improvements
  • DPI and scaling fixes and improvements-
  • All log sinks made available

Known issues:

  • Switching tabs in TabControl does not invalidate UIA tree
  • AvaloniaHost takes all input once focused
  • Closing popup from its button might require an extra click

XPF 1.5.3 (2025-06-23)​

  • Fix MediaContext to use Stopwatch instead of system clock
  • Adjust WinForms MessageBoxTheme
  • Enforce WPF LineSpacing

XPF 1.5.2 (2025-06-09)​

  • Limit the width of a MessageBox to 400px to closely follow the WIN32 behavior
  • Limit the MessageBox to 80% of the current screen's height
  • Update Avalonia to stable 11.3.1

XPF 1.5.1 (2025-05-21)​

  • Change VB MsgBox default title to be identical to Windows

XPF 1.5.0 (2025-05-07)​

  • Apply TextAlignment to overflowed AVTextLine
  • BmpBitmapDecoderHandle - support 1-Bit BMP
  • Fix Window.Closing event not being fired in certain situations
  • Fix ImageBrush being broken when used as opacity mask
  • Fix radial gradient and dash array rendering
  • Fix hiding/showing dialogs.
  • Set dialog task to complete when dialog is hidden
  • Constrain subtree content bounds by the clip bounds
  • Fix crash in file dialog when no filename is specified
  • Make sure draw rounded rectangle is executed with valid radii
  • Alternative menu capture fix
  • Use first monitor if no primary
  • Fix AvalonEdit completion window crash
  • Add support for FontFamily.FamilyTypefaces
  • Implemented SetCursorPos API shim
  • Improve bitmap performance
  • Invoke MediaContext update handler via BeginInvokeOnRender
  • Remove native calls in ribbon control
  • Fix win32 shims on x86
  • Added logging for APISHIM calls
  • File ok handling
  • Update System.IO.Packaging to 6.0.2
  • Make sure the paragraphWidth is rounded up
  • Add support for VB MsgBox function
  • Add support for VB InputBox.
  • Fix Border Position of RichTextBox
  • Fix crash when XpfContain detached from tree
  • Handle Case for 8bpp Bitmaps
  • Rework font loading
  • Handle RectangleNode with zero height
  • Fix Font Metrics Rounding Error
  • Fix frame decode finalize
  • Fix PngBitmapDecoder alpha channel
  • Do not share the same FontMetrics between Font and FontFamily
  • Handle duplicate fonts when loading font collections
  • Fix custom font face simulation
  • Ensure localized font strings are mapped to available cultures
  • Simplify target pixel format for decoded bitmap data
  • Allow showing popups without placement target.
  • Add support for indexed bitmap sources
  • Implement OpenFolderDialog
  • Don't call win32 GetCursorPos in Popup.

XPF 1.4.0 (2025-01-08)​

  • Remove System.Configuration.ConfigurationManager usages
  • Fix ModifierKeys.MacControl value
  • Replace WebRequest/WebResponse base ctor calls with RuntimeHelpers.GetUninitializedObject + Frame control fixes
  • Fix key remapping exception
  • Reset modifier keys on lost focus
  • Simple 3d support
  • Fix Paragraph TextAlignment
  • Fix compilation error in MuceViewport3DVisual
  • Add GetAvaloniaTopLevelForWindow
  • Window frame for single-view platforms like browser
  • Resizable single view windows, fix decorations
  • Implemented online licensing tickets
  • Include remaining platforms in License check
  • Fix avalon dock resizing issue
  • Fix lower right corner cursor
  • Replace binary formatter
  • Stub ShowSystemMenu
  • Fix DragOver exposing already disposed IDataObject
  • Do not crash when path simplification fails
  • Added ScreenToClient win32 API shim.
  • Fix XPF popups when embedded in Avalonia.
  • Use OpenGL by default on macOS
  • Implement JpegMetadata and allow reading the orientation
  • Fix NRE in ElementProxy
  • Add a runtime flag to enable interop for DataObject custom formats
  • Add support for reading and writing the exif MakerNote
  • Fix up "control is not in any visual tree"
  • Fix Cursors.None
  • Fix popup memory leak
  • Release mouse capture on Window deactivation.
  • Update Avalonia.Licensing
  • Ensure visual root dpi is set
  • Fix BitmapSource 4 byte alignment
  • Normalize some metadata queries to lower case
  • Use default WPF behavior if ALC support wasn't explicitly enabled
  • Adjust TextLine clipping when the line isn't collapsed

XPF 1.3.0 (2024-08-12)​

  • Enable ECDSA-based license keys
  • Fix multiple Geometry APIs
  • Cache FontCollections and make them thread aware
  • Fix issue with geometry hit testing non-stroked segments
  • Update version on main to 1.3
  • Implement BlockUIContainer
  • Update Avalonia version
  • Fix dispatch exception handling
  • Support loading XPF into a separate ALC for poor man's multithreading
  • Fixed MUCE geometry invalidation
  • Fixes large image docoding
  • Fix inlines TextDecorations and fix BaselineAlignment
  • Fix TextDecorations
  • Fix Key Mapping on macOS
  • Fix GetDpiForMonitor
  • Implement F32MonitorHandle and use new Screens APIs
  • Hackfix for incorrect glyph run bounds
  • Don't process mouse events as touch
  • Call InternalClose from the externally available Window.Close method
  • Initial PDF generation support
  • Add support for corner radius in rectangle geometry
  • Add support for strokeless geometry segments
  • Update avalonia: fix win32 window shown state
  • Update avalonia- fix topmost owned window not working
  • AvaloniaHostContainer needs to set transform origin to zero instead of default 50%50%
  • Keep focus in avalonia host if window is reactivated
  • Add dummy AdjustWindowRectEx
  • Fix incorrectly set filename in save dialog
  • Fix Window.Icon
  • Fix "Mouse events not fired properly if another mouse button is pressed"
  • Manually subscribe to all of subtree visual invalidation from MuceVisualBrush
  • Fix headless platform, avoid Skia hardcoding
  • Minor patcher improvement
  • Add a flag to disable stackframe tweaks for devexpress
  • Skip rendering content if it will be clipped away anyway
  • Change the way we pool MuceRenderData states
  • Fix FontAwesome.Sharp font loading
  • Bump image sharp
  • Stub for SHGetFileInfo
  • Implement bitmap.copypixels
  • Fixed DrawingImage, hackfixed parentless VisualBrush
  • Publish packages from all branches
  • Add regex semver checking for release tags
  • Update dotnet.yml to trim trailing backslash on version
  • Update Common.props
  • Remove UseWinForms + misc
  • Disable ImportWindowsDesktopTargets
  • Allow the user to enable logging via msbuild property or environment variable
  • Add XpfSingleProject property
  • Update AvaloniaUI.Xpf.WinApiShim.targets
  • Browser compatibility improvements
  • Experimental WinAPI shims support for Browser
  • Fix browser winapi shims
  • Fix browser SDK
  • Various WinAPI shims fixes related to the Screen API
  • Some mono fixes
  • SystemInformation.MouseWheelScrollDelta support
  • Reset popup _positionInfo when creating a new win

XPF 1.2.0 (2024-05-29)​

  • Update ImageSharp
  • Make DragDrop handler work with any Control rather than TopLevel
  • Implement GetActiveWindow with virtual window handles
  • Make HwndWrapper usable
  • Ignore size to content from avalonia window
  • Patch XPF assemblies to throw on DllImport
  • Update GetSizeFromHwnd
  • Update Avalonia nuget to 11.2 alpha
  • Check if XpfHost is actually attached to something to decide if popup creation should be deferred
  • Fix for situation when ExclusivelyOwnedWindow is actually null
  • Port wpf popup placement logic
  • Keep focus in avalonia host if window is reactivated
  • Make snoop work in more cases
  • Add support for corner radius in rectangle geometry
  • Reset popup _positionInfo when creating a new window
  • Fix for Telerik's RadTooltipWindow
  • Read hotspot from .cur files
  • Skip rendering content if it will be clipped away anyway
  • Use absolute transform origin for WPF's Brush.Transform property
  • Check if window has been activated before, when checking focus
  • Fixed VisualBrush regression
  • Add default bitmap cursor for Pen cursor type
  • Initial support for PDF generation
  • Added SystemInformation.MouseWheelScrollDelta
  • Raise position changed when window position is set on initial state
  • Activate window when control gains focus
  • Fix bitmap encoding issues
  • Block input during managed dragging
  • Implemented BlockUIContainer
  • X11 - Keep track of whether window activation is complete from control focus
  • Fallback to setting dragpoint when position is set on linux
  • Stub UnhookWindowsHookEx
  • Various WinAPI shims fixes related to the Screen API
  • Map more pixel formats
  • Actipro docking fixes
  • Don't call GetCapture from ComboBox in XPF
  • Send MILCMD_BITMAP_INVALIDATE for WriteableBitmap.AddDirtyRect
  • Properly configure DPI and page size metadata for PDF documents
  • Don't allow resizing on maximized windows x11
  • ManagedWindowDragHelper - keep track of previous positions and update position when WM_MOVING is handled
  • MonitorFromWindow: Do not throw for non attached visual
  • Fix unhandled exceptions
  • Fix some Geometry issues
  • Add support for strokeless geometry segments
  • Add SKColorFilter free callback
  • Allow the user to enable logging via msbuild property or environment variable
  • Don't call GetCapture from MenuBase in XPF
  • Update PresentationCore ref for XpfSkiaExtensions
  • Add background setting to MessageBoxTheme.axaml
  • Prevent non-client input when mouse is captured
  • Fix screen working area for popups
  • Fix crash on text box paste
  • Fix some docking issues

Known Issues​

  • Actipro docking: when tearing off a pane, preview is not shown on macOS
  • DevExpress docking: does not always show drop adorners on X11
  • Syncfusion docking: problems on all platforms
  • Telerik docking: Initial drag/tear-off stops registering mouse on Windows