We are using Membership Pro with Stripe payment gateway and with Paypal.
We have a few plans which are recurring (yearly).
Do subscribers have to do anything or does the payment automatically renew every year? If so, does the administrator get any notification?
Subscription will be renewed automatically every year, admin and subscribers won't have to do anything. Each time renewal happens, Membership Pro will send notification email to both admin and subscribers about this renewal so that admin and subscriber will know about it