Change RT-Theme 17 to a newer vesion

Hello everyone,
has anyone ever upgraded from Rt-Theme 17 to the newer RT-Theme XX?
Do you know if you keep the custom settings like the Products or do you have to redo everything?
Thanks in advance

Hi @pixxelfactory,

I think the theme author can give you the best answer. Also they will be able to guide you how to proceed the upgrade process. Please contact the author of your purchased theme, the author will assist you.

How to contact an author to get support or for any technical query:

Thanks

I already contacted the author but yet no answer.
Btw I was looking for real experiences of the upgrade.