The ColorSpace element is not required for images which are using JPXDecode filter.

The IsBusy property of RadBusyIndicator does not correctly reflect the value of its data-bound source when the control is unloaded and then loaded again while using a OneWay binding.

A common scenario where this occurs is when RadBusyIndicator is hosted inside a TabItem of a TabControl:

1. IsBusy is bound (OneWay) to a ViewModel property whose value is True.
2. The user switches to another tab, causing the RadBusyIndicator to be unloaded.
3. During the unload process, the control internally sets its IsBusy property to False.
4. The ViewModel property remains True.
5. When the user navigates back to the original tab, the RadBusyIndicator is loaded again.
6. Although the bound ViewModel property is still True, the control's IsBusy property remains False.
   
   

The binding is not re-evaluated when the control is loaded again, resulting in the control displaying a stale value that is out of sync with the bound ViewModel property.

TooltipContentTemplate does not apply on Windows11/Windows Server 2025

Rendering issues occure when using Hierarchical virtualization mode and bring into view.
The issue is hit in both platforms - WPF and Silverlight. 

If you move an item from one level to another into the tree, the indent of the corresponding row won't get updated. This is reproducible only if the new parent of the moved item is expanded, while the operation is executed.

Usually, this can be reproduced by calling the ExpandHierarchyItem() for the new parent item method just after the moving of the original item.

To resolve this you can delay the expanding of the item. Note that the expanding is executed manually by calling the ExpandHierarchyItem() method. So, you can use a dispatcher with a lower DispatcherPriority to delay this.

Or alternatively, you can collapse the item before expanding it (using the CollapseHierarchyItem() method).

HTML import fails when an image has an align tag set to a value different from center

<img align="top"
     width="170" height="61" />

The filter is not updated when the DeferTextChange property is set to True.  The properties set to the control:

<telerik:RadMultiColumnComboBox x:Name="OptionsComboBox"
                                DisplayMemberPath="Name"
                                NullText="Select an option..."
                                CloseDropDownAfterSelectionInput="True"
                                DropDownWidth="440" DropDownHeight="220"
                                Height="32"
                                SelectionBoxesVisibility="Collapsed"
                                AutoCompleteMode="SuggestAppend"
                                ClearSelectionOnDeleteOrBackKey="True"
                                DeferTextChange="True">
. . . . . 

1. Select Banana from the dropdown. It should appear as editable text without the little × button.
2. Reopen the dropdown, so we can se it
3. Click in the middle of banana in the textbox(not the dropdown), then Ctrl+A and type zz.
4. Wait a second, then Ctrl+A, Backspace.

RadVirtualGrid retains pending off-screen PushCellValue values across Reset(), Reset(rowCount, columnCount), and DataProvider replacement. When indices are reused for different data, the first realized cell consumes the stale value instead of retrieving the value from the new DataProvider. A pushed null renders a blank. Scrolling away and back retrieves the correct value. This can display data from a different item once after a dataset change.

Borders can overhang 1 px from the corresponding cells. The issue is reproducible only on some zoom levels, and is most probably related to WPF layout rounding. The issue is mostly visible when borders are missing. 

On different zoom levels, different borders are hanging.