Changes to Unsubscribe a contact from all subscriptions

the results/items/subscriptionId response's property format changed from int32 to int64 for status 200

the endpoint scheme security private_apps was removed from the API

the endpoint scheme security private_apps was removed from the API

the security scope communication_preferences.read_write was added to the endpoint's security scheme oauth2

the security scope communication_preferences.write was removed from the endpoint's security scheme oauth2

api tag Definitions added

api tag Basic removed