Q2 2010 SP2 release focuses on "memory leaks" fixes. We are proud to announce that we managed to address most of the known issues, including the ones in our online demos.
For full details please check the Release Notes (Silverlight | WPF).
To download the latest files log into your account and go to the Downloads section:
RadControls for Silverlight
RadControls for WPF
The updated online demos are available at:
Silverlight | WPF demos.
Some more details about the solution we implemented to address the known memory leak problems can be found in Vassil Terziev's blog post about Silverlight 4 memory leaks, Telerik controls and a solution.
We will greatly appreciate your feedback for any further memory leak problems you find. Simply post them here or send a support ticket.