Available in LIB version 2016.3.1107, it will be also available in the 2017 R1 release.

When the DropDownDisplayMode of the RadPaneGroup is set to Visible and that group is placed inside the DocumentHost calling the RemoveFromParent from a button places in the HeaderTemplate of the RadPane causes that RadPane instance to not be removed from the memory.

Available in LIB version 2016.3.1107, it will be also available in the 2017 R1 release.

When used in second Tab in TabControl for example.

Available with the R3 2016 SP1 release. 

Is there any option to create a connection line as a blank rectangle. At present I can see only solid lines only. Please see the attached image, and suggest how to get top two connection types.

Decline reason: The diagram exposes an API that allows you to create custom geometry for the connection. You can override the CreateGeometry(), CreateSourceCapGeometry() and CreateTargetCapGeometry() methods of RadDiagramConnection and create custom geometries. See the CustomConnectionCap SDK example: https://github.com/telerik/xaml-sdk/tree/master/Diagram/CustomConnectionCaps

Loading a layout containing a single empty RadPaneGroup inside the DocumentHost causes the IsInDocumentHost property of the group to return false.

Available in LIB version 2016.3.1017, it will be also available in the 2016 R3 SP1 release. 

When move the most left pane in a split container above some other pane in the same split container the second splitter is created.

Available in LIB version 2016.3.1017, it will be also available in the 2016 R3 SP1 release. 

Available in LIB version 2016.3.1003, it will be also available in the R3 2016 SP1 Release.

If the IsHidden property of a Pane placed inside the Document host is bound to a property in the ViewModel with value of True the IsHidden property at start-up is reset to False.

Possible workaround:

A custom RadDocking control can be created, in which the OnCreateAutomationPeer() method is overridden. OnCreateAutomationPeer() should return a custom RadDocking AutomationPeer, in which the ToolWindowAutomationPeer is removed from the collection of child elements of RadDocking AutomationPeer.
Approach demonstrated in the attached project.

When the content of a RadPane contains an ScrollViewer it is scrolled to its end when the RadDocking control is used in nested docking scenarios.

Available with the 2015 Q3 release.

Changing the theme at runtime causes any horizontal ScrollBar inside the content of a RadPane to be scrolled to its end

Available with the 2015 Q3 release.

Steps to reproduce:
1. Start the WPF Controls Example application on a terminal server
2. Select Docking example
3. Try to move a floating windows by dragging it with the mouse
4. The window will move for a split second, but stop moving after that. (It behaves as if the mouse button was released after the initial move)

AutoHideArea is opening when pin/unpin another Pane

As a user of the control I want to be able to write custom logic for saving and loading the layout of the Docking control so that

- I can customize which elements should be saved (I want to exclude elements)
- I can describe how the elements should be loaded
- I can choose how the layout file is formatted
- I can choose which properties of a RadSplitContainer, RadPaneGroup or RadPane are saved

Available in the 2016 R2 release.