When add references to GridView, GanttView, Input, Pivot, PivotFieldList binaries and open VisualStudio designer, add telerik schema and open VS designer, the following exceptions are shown in output window: 
There was an exception when loading the design time assembly 'C:\Users\Andy\AppData\Local\Microsoft\VisualStudio\14.0\Designer\ShadowCache\vnccr3tx.jie\tpt1i54e.lhk\Design\Telerik.Windows.Controls.GanttView.Design.5.0.dll':
Exception has been thrown by the target of an invocation.
There was an exception when loading the design time assembly 'C:\Users\Andy\AppData\Local\Microsoft\VisualStudio\14.0\Designer\ShadowCache\rcuor1yw.trm\3pfbopk0.jq2\Design\Telerik.Windows.Controls.GridView.Design.5.0.dll':
Exception has been thrown by the target of an invocation.
There was an exception when loading the design time assembly 'C:\Users\Andy\AppData\Local\Microsoft\VisualStudio\14.0\Designer\ShadowCache\5dbl0ard.vq2\ryoz1p4c.qfj\Design\Telerik.Windows.Controls.Input.VisualStudio.Design.4.0.dll':
Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.
Could not load file or assembly 'Telerik.Windows.Core.Design, Version=2016.3.1024.45, Culture=neutral, PublicKeyToken=5803cfa389c90ce7' or one of its dependencies. The system cannot find the file specified.
There was an exception when loading the design time assembly 'C:\Users\Andy\AppData\Local\Microsoft\VisualStudio\14.0\Designer\ShadowCache\1ezw2acw.w0d\41bkmvbl.kft\Design\Telerik.Windows.Controls.Pivot.Design.5.0.dll':
Exception has been thrown by the target of an invocation.
There was an exception when loading the design time assembly 'C:\Users\Andy\AppData\Local\Microsoft\VisualStudio\14.0\Designer\ShadowCache\p2ywzsl3.fxy\22f0oc1j.nsf\Design\Telerik.Windows.Controls.PivotFieldList.Design.5.0.dll':
Exception has been thrown by the target of an invocation.

Available in LIB version 2016.3.1121, it will be also available in the 2017 R1 release.