Paddle introduced Enhanced Billing Notification which notifies users of subscriptions with long terms in certain regions of the upcoming charge to comply with regional laws.

In order not to send a renewal reminder twice to a user we have changed the renewal system in Boathouse to check if the user matches the country and/or region of this new enhanced billing notification scheme and prevents sending them a reminder through Boathouse. 

This way your customers only get a single renewal reminder either from Paddle or from Boathouse.