Apple Push Notification service server certificate update https://developer.apple.com/news/?id=09za8wzy All developers using APNs will need to update their application’s Trust Store to include the new server certificate What exactly should developers do? Please tell me the specific method. Please make sure that both old and new server certificates are included in the Trust Store before the cut-off date for each of your application servers that connect to sandbox and production. How do I make sure that both the old and new server certificates are in the Trust Store? Thank you for your understanding.

Hi, Do I need to make any settings to change from Non Sandbox iPhone to Sandbox iPhone? https://developer.apple.com/apple-pay/sandbox-testing/ "Create your Payment Processing Certificate or obtained a CSR from your PSP." What does this mean? Thanks.