Hi Travas Nolte,
We apologize for the late response.
The version of the RadControls we ship with Sitefinity 3.5SP1 is 2008.2.1001.20
which is Q2 SP2 2008. We are planning to ship Q3 version with the next releases due to mid of December.
Let us know if you have any other questions.
the Telerik team
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