I just receive a email related Reminder: APNs provider API requirement starts March 31 (https://developer.apple.com/news/?id=uzyxiriy), which asked me to update my APNs if I was using the the legacy binary protocol one. But how to check if I am using the legacy binary protocol APNs or the HTTP/2-based one? FYI, i am using titanium sdk to build my app and push notifications to users. Please help, thanks.