Automatic upgrade 7.0 to 7.1

Site URL: https://www.palegreendot.co.uk

Hi all

My client has a 7.0 store with a significant number (££££ worth) of weekly subscription customers on it. They'd like to use the features of 7.1, but definitely don't want to ask the customers to resubscribe, because the ££££ will drop to £££ and that's not acceptable at all to the business (nor should it be).

Is there, or when will there be an automatic upgrade from 7.0 to 7.1, so that they can continue their business without an interruption?

Thanks for any thoughts!