Rhino 6 WIP with my V4 license?

Hi guys and gals,

I’m new to the fourm but an old Rhino user. Is it possible for me to test the Beta with my V4 license? I’ve been using Rhino V4 for many years, even did the Rhino5 WIP but I think it’s time for an upgrade. I’d like to test v6 but I see it’s only valid for Rhino V5 licenses. Is it possible to use my V4 license to get the V6 WIP?

Looking forward to the replies,