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+## v3.8.0
+
+_Released January 30, 2020._
+
+**35 bug fixes and improvements**
+
+* In AvalonDock, activating LayoutFloatingWindows now uses the client area’s width and height.
+* In AvalonDock, docking a LayoutAnchorable to top/bottom followed by a docking to right/left no longer allows a resize that will hide the LayoutAnchorable header.
+* In AvalonDock, docking a LayoutAnchorable with its CanClose property set to false, into a LayoutDocumentPane, no longer displays a close button in the newly created LayoutDocument.
+* In AvalonDock, dragging splitters no longer throws null argument exception.
+* In AvalonDock, expanding auto-hidden LayoutAnchorables now always selects the LayoutAnchorable where the auto-hide button was clicked.
+* In AvalonDock, fixed a NullRefException that was thrown by LayoutAnchorableControl when the Model is changed (such as when clearing merged dictionaries).
+* In AvalonDock, fixed an OutOfRangeException that was thrown when dropping a LayoutFloatingWindow inside a DockingManager.
+* In AvalonDock, fixed an OutOfRangeException that was thrown when re-docking a LayoutDocument after making all the LayoutDocuments from a LayoutDocumentPane float.
+* In AvalonDock, LayoutAnchorable now includes the new Hidden event, which is raised when the hiding process of a LayoutAnchorable is completed.
+* In AvalonDock, moving the GridSplitter no longer raises an exception when an invalid value(NaN) is used.
+* In AvalonDock, removing LayoutAnchorables now stretches the remaining LayoutAnchorables in the available space.
+* In AvalonDock, the Czech localization is now supported.
+* In AvalonDock, the NavigatorWindow now supports navigation with the arrow keys.
+* In AvalonDock, using the context menu to dock a LayoutAnchorable floating window as a tabbed document now keeps the “X” in the header to close the LayoutAnchorable.
+* In AvalonDock, using the grid splitter to reduce a LayoutAnchorable’s width or height now respects the MinWidth or MinHeight previously set.
+* In AvalonDock, when using nested DockingManagers, dragging a LayoutDocument no longer hides the drop zone target when the mouse enters a nested DockingManager but remain over the main DockingManager.
+* In ColorPicker, fixed an issue where clicking on tab headers would close the popup when it was used inside a DataTemplate.
+* In DateTimePicker, fixed an issue where the newly selected date was reset if, after selecting the new date, a new time was entred in the TimePicker and the DateTimePicker lost focus.
+* In DateTimePicker, fixed an issue where the newly selected date was reset if, after selecting the new date, the TimePicker spinner buttons were used to modify the time.
+* In DateTimePicker, selecting a new date in the Calendar now immediately modifies the Value property.
+* In DateTimePicker, setting the ShowDropDownButton and ShowButtonSpinners properties to false no longer makes the right border disappear.
+* In DropDownButton, when the popup contains a ComboBox, clicking outside the inner ComboBox, but inside the DropDownButton popup, no longer closes the DropDownButton popup.
+* In MaskedTextBox, the PromptChar character is now displayed when the IsReadOnly property is true.
+* In NumericUpDown controls, fixed a NullRefException that was thrown when setting the FormatString property to null.
+* In PropertyGrid, a null SelectedPropertyItem property no longer throws an ArgumentNullException.
+* In PropertyGrid, a ReadOnly property can now use its Editor Template.
+* In PropertyGrid, removing the text in the Search TextBox now removes the yellow highlighted text from the PropertyGrid.
+* In PropertyGrid, the contextMenu containing the ‘reset’ option for properties no longer disappears after modifying PropertyGrid properties.
+* In PropertyGrid, the new PropertiesGenerated event is now raised when all the properties of the PropertyGrid are generated.
+* In PropertyGrid, when the SelectedObject property is set to an object containing properties of type interface, the PropertyGrid editors no longer use an empty ComboBox.
+* In RangeSlider, using the IsDeferredUpdateValues property to true now correctly displays the HigherRangeBackground and LowerRangeBackground when sliding the thumbs.
+* In TimePicker, selecting a new time in the ListBox now immediately modifies the Value property.
+* In WatermarkPasswordBox, using the escape key input is now ignored.
+* In WatermarkPasswordBox, when the AcceptsReturn property is true, a “\r” is now added to the Password property; when the AccceptsReturn property is false, the input is now ignored.
+* In PropertyGrid, modifying the SelectedObject property when using alphabetical or categorized (with many categories) sorting now removes the visual ‘flash’ upon refreshing.
+
+## v3.8.0 Plus Edition
+
+_Released to registered users of the Plus Edition on January 30, 2019._
+
+**49 improvements and bug fixes**
+
+* In StyleableWindow, ChildWindow, MessageBox and WindowControl, the content no longer fades when the window loses focus(Plus Only).
+* In AvalonDock, LayoutAnchorable and LayoutDocument can now be set as TopMost when floating(Plus Only).
+* In ExtendedTabControl, fixed a NullRefException that was thrown when using the Design mode(Plus Only).
+* In ExtendedTabControl, the new CacheTabItems property now makes it easy to prevent the reloading of the selected TabItem when tab selection is changed(Plus Only).
+* In MaterialButton, scaling a text content now displays clear characters(Plus Only).
+* In MaterialTabControl, navigation with the tab key will now be contained in the active MaterialTabItem(Plus Only).
+* In MS DataGrid, the DataGridColumn.HeaderTemplate can now be set when a theme is applied(Plus Only).
+* In PropertyGrid, modifying the SelectedObjectOverride property when using alphabetical or categorized (with many categories) sorting now removes the visual ‘flash’ upon refreshing(Plus Only).
+* In PropertyGrid, modifying the SelectedObjectsOverride property now cancels any pending properties generation inside the PropertyGrid(Plus Only).
+* In PropertyGrid, new methods were added to retrieve a list of category names (GetCategories, GetCollapsedCategories, GetExpandedCategories) and to retrieve the current state of a specific category (IsCategoryCollapsed, IsCategoryExpanded)(Plus Only).
+* In PropertyGrid, the new SelectedObjectsOverrideChanged event is now raised when the SelectedObjectsOverride property changes(Plus Only).
+* In StyleableWindow, the header icon no longer touches the left window border(Plus Only).
+* In StyleableWindow, using a DockingManager with LayoutAutoHideWindowControls now shows the pinned window popup when the mouse goes over i(Plus Only)t.
+* In TokenizedTextBox, modifying the SelectedItems collection now only raises one (1) ItemSelectionChanged event(Plus Only).
+* In AvalonDock, activating LayoutFloatingWindows now uses the client area’s width and height.
+* In AvalonDock, docking a LayoutAnchorable to top/bottom followed by a docking to right/left no longer allows a resize that will hide the LayoutAnchorable header.
+* In AvalonDock, docking a LayoutAnchorable with its CanClose property set to false, into a LayoutDocumentPane, no longer displays a close button in the newly created LayoutDocument.
+* In AvalonDock, dragging splitters no longer throws null argument exception.
+* In AvalonDock, expanding auto-hidden LayoutAnchorables now always selects the LayoutAnchorable where the auto-hide button was clicked.
+* In AvalonDock, fixed a NullRefException that was thrown by LayoutAnchorableControl when the Model is changed (such as when clearing merged dictionaries).
+* In AvalonDock, fixed an OutOfRangeException that was thrown when dropping a LayoutFloatingWindow inside a DockingManager.
+* In AvalonDock, fixed an OutOfRangeException that was thrown when re-docking a LayoutDocument after making all the LayoutDocuments from a LayoutDocumentPane float.
+* In AvalonDock, LayoutAnchorable now includes the new Hidden event, which is raised when the hiding process of a LayoutAnchorable is completed.
+* In AvalonDock, moving the GridSplitter no longer raises an exception when an invalid value(NaN) is used.
+* In AvalonDock, removing LayoutAnchorables now stretches the remaining LayoutAnchorables in the available space.
+* In AvalonDock, the Czech localization is now supported.
+* In AvalonDock, the NavigatorWindow now supports navigation with the arrow keys.
+* In AvalonDock, using the context menu to dock a LayoutAnchorable floating window as a tabbed document now keeps the “X” in the header to close the LayoutAnchorable.
+* In AvalonDock, using the grid splitter to reduce a LayoutAnchorable’s width or height now respects the MinWidth or MinHeight previously set.
+* In AvalonDock, when using nested DockingManagers, dragging a LayoutDocument no longer hides the drop zone target when the mouse enters a nested DockingManager but remain over the main DockingManager.
+* In ColorPicker, fixed an issue where clicking on tab headers would close the popup when it was used inside a DataTemplate.
+* In DateTimePicker, fixed an issue where the newly selected date was reset if, after selecting the new date, a new time was entred in the TimePicker and the DateTimePicker lost focus.
+* In DateTimePicker, fixed an issue where the newly selected date was reset if, after selecting the new date, the TimePicker spinner buttons were used to modify the time.
+* In DateTimePicker, selecting a new date in the Calendar now immediately modifies the Value property.
+* In DateTimePicker, setting the ShowDropDownButton and ShowButtonSpinners properties to false no longer makes the right border disappear.
+* In DropDownButton, when the popup contains a ComboBox, clicking outside the inner ComboBox, but inside the DropDownButton popup, no longer closes the DropDownButton popup.
+* In MaskedTextBox, the PromptChar character is now displayed when the IsReadOnly property is true.
+* In NumericUpDown controls, fixed a NullRefException that was thrown when setting the FormatString property to null.
+* In PropertyGrid, a null SelectedPropertyItem property no longer throws an ArgumentNullException.
+* In PropertyGrid, a ReadOnly property can now use its Editor Template.
+* In PropertyGrid, removing the text in the Search TextBox now removes the yellow highlighted text from the PropertyGrid.
+* In PropertyGrid, the contextMenu containing the ‘reset’ option for properties no longer disappears after modifying PropertyGrid properties.
+* In PropertyGrid, the new PropertiesGenerated event is now raised when all the properties of the PropertyGrid are generated.
+* In PropertyGrid, when the SelectedObject property is set to an object containing properties of type interface, the PropertyGrid editors no longer use an empty ComboBox.
+* In RangeSlider, using the IsDeferredUpdateValues property to true now correctly displays the HigherRangeBackground and LowerRangeBackground when sliding the thumbs.
+* In TimePicker, selecting a new time in the ListBox now immediately modifies the Value property.
+* In WatermarkPasswordBox, using the escape key input is now ignored.
+* In WatermarkPasswordBox, when the AcceptsReturn property is true, a “\r” is now added to the Password property; when the AccceptsReturn property is false, the input is now ignored.
+* In PropertyGrid, modifying the SelectedObject property when using alphabetical or categorized (with many categories) sorting now removes the visual ‘flash’ upon refreshing.
+
+We hope you love this release and decide to support the project by getting a license to Xceed Toolkit Plus for WPF.
+-- Xceed Team
+
+-----
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