Does the May 20 price change affect current subscribers too?

The notice says current subscribers are not affected, except in Turkey and India. It also says that can change if your existing subscription is changed or lapses, so check the terms for your region before making changes to your plan.

This is not a price list for every region or every plan. The notice gives starting prices for one-month and three-month subscriptions in selected regions, and frames the increase as applying to new customers. If you are signing up after May 20, check the local price shown for your account.