Defined in github.com/aws/aws-sdk-go/service/rds/api.go
A value that specifies whether the modifications in this request and any pending modifications are asynchronously applied as soon as possible, regardless of the PreferredMaintenanceWindow setting for the DB cluster. If this parameter is set to false, changes to the DB cluster are applied during the next maintenance window.
The ApplyImmediately parameter only affects the NewDBClusterIdentifier and MasterUserPassword values. If you set the ApplyImmediately parameter value to false, then changes to the NewDBClusterIdentifier and MasterUserPassword values are applied during the next maintenance window. All other changes are applied immediately, regardless of the value of the ApplyImmediately parameter.