Loading Rhino 5 upgrade

I have Rhino 4 on an old computer. I have an upgrade copy to Rhino 5 (maybe a year old, never installed) that I want to put on a new computer. Is there any special process, do I have to reload Rhino 4 on the new computer before I upgrade, is there some license transfer process to preform? Just curious before I get started.

You can just go ahead and install RH5 on the new computer - no need for RH4.
You will need to provide the license keys of both during the installation process though.

Thank you!

I would also recommend NOT using the product DVD from a year ago.
Instead, download the full version from the Download page and install using that.