Thank you for contacting us!
We are still collecting some fix requests for a new SP for the 3.7 version. This new SP will definitely contain the new RadControls. If you don't want to wait, you can attach a new release of the RadControls by following the steps in this knowledge base
Hope that helps, Olav! If you have any further questions, please do not hesitate to get back to us at your convenience!
the Telerik team