Migration from Citect V15 to Aveva System Platform

Hi guys!

I want to know if there's a problem if I move all my projects to Aveva System Platform. I want to use Aveva Historian but my guesses are that I need to migrate from my old version of Citect (Citect V15) to System Platform. 

My fear is that there's no way to do that. Can someone tell me if it's possible or not. Or even if someone has tried it already; or maybe from others Citect versions ?

Thanks for your time, 

Best rewards.