The problem can be reproduced only when the previously focused element is in ToolBar or RadToolBar. It is not reproducible in the default scenario. 

Should be resolved with lib version 2015.2.713.

GridViewColumnGroup.HeaderTemplate is not respected in Windows8, Windows8Touch and ExpressionDark themes. Instead, the name of the column group is its content.

This is reproducible with both StyleManager and Implicit Styles.

Should be resolved with lib version 2015.2.720.

The column group headers are not displayed when the DisplayIndex property of the GridViewColumn objects is set before the control is loaded.

To work this around, you can set the DisplayIndex of the columns after the RadGridView is loaded.

Copied values are not pasted in the proper cells. This makes it seems that the pasted values occur in random cells. 
The issue occurs when the ClipboardPasteMode enum property contains the AllSelectedRows value and the SelectionUnit property is Cell or Mixed.

To work this around, avoid using the AllSelectedRows ClipboardPasteMode. Or the SelectionUnit values Mixed and Cell.

An InvalidOperationException can be thrown when adding and removing items from the collection bound to the RadGridView from different threads. 

A column bound to a DataView with square brackets is no longer sortable or filterable.

Available in LIB version: 2017.2.515

Available in LIB version 2016.3.1309 , it will be also available in the 2017 R1 release.

Available in LIB version 2016.3.1212, it will be also available in the 2017 R1 release.

InvalidOperationException with a grouped grid in Windows11 theme (Animation Invalid DefaultValue). 

Grouped grid columns cannot be expanded or collapsed by clicking the row in the Windows 11 theme with XAML binaries.

Available in LIB version 2016.3.1227, it will be also available in the 2017 R1 release.