The Telerik UI for ASP.NET AJAX Q2 2014 SP1
version supports Visual Studio 2013
and .NET framework 4.5
. However, you could consider upgrading to the latest version because it contains fixes and features which your current version doesn't have. You can check what is new in the product in the Telerik UI for ASP.NET AJAX Release History
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Feedback Portal
and vote to affect the priority of the items