Since I migrated from Ver4 SDK to Adobe Launch, the % of new visitors on my iOS Mobile App increased from daily avg of 4% to 12%. Any thoughts on what's causing it?  

My website has about 10M visits each month, and I want to enable event forwarding to send traffic to our internal database. Will these additional calls lead to additional cost?

Will analytics data continue to flow when Ver4 SDK is retired on 31Dec2022?