Do i need to uninstall my current version of the iPhone SDK (v3.2) in order to install the latest GM (v4.0)?

Do i need to uninstall my current version of the iPhone SDK (v3.2) in order to install the latest GM (v4.0)? Or can I just download the latest SDK and run 开发者_如何学Gothe installer?

Thanks so much in advance for your help!

I understand that you can install the SDK 4 in a different location. That means you can have both version installed at the same time.

I haven't done that myself, though, so I'm not sure about the exact steps to follow. I assume there is a way to change the installation directory in the installer.