Fix available in LIB Version 2017.3.1009.

Available in LIB version: 2015.1.2004

The checked RadRibbonSplitButton doesn't look good and it is not consistent with the RadRibbonToggleButton when hosted in QuickAccessToolBar. This is reproducible when the IsToggle of the button is set to True and the button is checked (IsChecked=True). Also, it reproduces in the Windows11 and Office2019 themes.

To work this around, you will need to re-template the button when hosted in QuickAccessToolBar.

Scheduled for:
The fix for this issue will be available with LIB (version 2019.1.121) scheduled for publishing on Monday, 21st January 2019.

Currently, the titlebar text that appears when you set the ApplicationName is centered in the titlebar. Add option to align the WindowTitle element left or right in the titlebar.

The RibbonGroup Header is not displayed in data-bound scenario when HierarchicalDataTemplates are used.

If you set those properties they are ignored by the control. You can resize the window beyond the set restrictions.

Available in LIB version: 2015.1.2004

When the RibbonWindow contains WindowFormsHost element with WinForms controls and the window is resized (for example with the Maximize/Restore Down buttons), the resizing is slow.

Note: The issue is reproducible only if the  RadRibbonWindow.IsWindowsThemeEnabled static property is set to False

Currently, the RadRibbonTab GetChildrenCore method doesn't create automation peers for the element in the ContentPresenter for the TabStripAdditionalContent.

At this point, you can enable this by creating a custom AutomationPeer that derives from RadGridViewAutomationPeer and override its GetChildrenCore() method. This way you can manually create the peer for the AdditionalTabStripContent. This idea is shown in the attached project.

This is tested and reproducible in the Office2016 and Material themes. Probably it can be reproduced also with other new themes which use glyphs.

The CPU goes high because the RadRibbonGroup contains a GroupChrome element which has a TextBlock with the GlyphAdorner.ShowGlyphInDesignTime property set to True. 

To resolve this:

1.Extract the ControlTemplate of the RadRibbonGroup control.
2.Extract the ControlTemplate of the GroupChrome control.
3.Find the TextBlock element in the GroupChrome ControlTemplate.
4.Remove the telerik:GlyphAdorner.ShowGlyphInDesignTime  setting from the TextBlock
5.Set the Template of the GroupChrome in the RadRibbonGroup ControlTemplate to the custom GroupChrome template.
6.Apply the custom RadRibbonGroup template. 

When NoXaml binaries are used and there is content hosted in the RadRibbonWindow it gets clipped.

Available in LIB version: 2014.3.1312

The ribbon tab doesn't get selec if you click in the exact middle of the header of RadRibbonTab.

To work this around, extract the ControlTemplate of RadRibbonTab and move the Grid with x:Name="ContentPanel" before the Grid with x:Name="HeaderPanel".

When opening Backstage using KeyTips service, NullReferenceException is thrown when the backstage items have also had KeyTips set. 

The RadRibbonView does not display in the designer when IsMinimized property is set to True.

Currently, the RadRibbonTab GetChildrenCore method creates automation peers only for the elements in its Items collection. There is no peer created for the element in the Header. Add support for this. 

This missing peer, leads to that the TextBlock in the Header of the ribbon tabs is not highlighted when using a UI inspecting tool (like Snoop and its Automation option or UISpy.exe).

You can find a solution that shows how to achieve this in the attached project.

RibbonSplitButton have different width in its dissable state compared to its normal state.

The fix is available in Q1 2015 SP Release.

The property allows you to align the minimize, maximize and close buttons to the left or the right of the window's header. Currently, this is implemented to work only for RadWindow. Add support also for the RadRibbonWindow

Currently, RadRibbonView's OnApplyTemplate method can be called after adding the new tabs so that the group and tabs are redrawn correctly.

If a RibbonView with Backstage menu is hosted in a RibbonWindow and the window's MinWidth and MinHeight properties are applied, when the Backstage is opened the size restrictions are no longer respected.