Do i have to uninstall cuda 8 before installing cuda 9.2?

Hello at all,
i have a question about the installation of the new cuda 9.2 …
I work with premiere pro cc and with graphic card GTX1080 and I have installed the cuda 8.
Well I would like to know if before installing the new cuda 9.2 I have to uninstall the cuda 8 and its Visual Studio.
Thanks for helping :)

As far as I know, you do not need to uninstall CUDA 8 before installing CUDA 9.2.

Hello, and cuda 9 ? i need uninstall ?
Thank you