Thanks for contacting us.
When updating the references in your projects to newer versions you should make sure that all the referenced assemblies have the same version and it is the one you are updating to.
Internal builds in general do not ship with an installer package. They are simply an archive of DLLs which represent the internal state of the development of our controls. To use them you should simply extract the archive and reference the needed DLLs in your project.
If you still continue experiencing issues, please try uninstalling the official version and after that try adding the references to the internal build anew.
I hope this helps.
Do not hesitate to get back to us in case of further questions.
the Telerik team
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