[tags:wwdc20-10063]

Can you provide me some explanation about how to achieve received messages in terminated mode without showing any notification and turn off background fetch in settings ? In whatsapp application if I mute any conversation and from settings turn off background app refresh , turn off notifications , after when sender send messages , he got delivered response , when I turn-off my internet and open whatsapp application that all 60-70 any number of messages are already received ! I tried with background silent push with FCM but soon if I open any other application , I'm not able to getting silent push. I tried with all versions from iOS 13.5 to iOS 14.3 but all have same output. How to achieve to load/insert data in terminated application , with turn off background app refresh , notifications ?

Here is a small program to help me understand NSDecimalNumber, but I’m even more confused now and hope someone can explain what’s going on. This example simply inverts a number, then inverts that result with the goal of obtaining the original value. This seems possible with small numbers but as the exponent power of 10 increases inaccuracies creep in that I cannot explain (so that I can make corrections). Further, as I increase the number of times a number is inverted the greater the inaccuracies become; however these behaviors only occur with certain powers of ten. The sample program centers on inverting the number 7, and 7 raised to various powers of 10: 7e+0 though 7e+99. For each of these numbers a recursive function is called that performs the actual inversion a given number of times. And there is a particular power of ten that demarcates “good” behavior from “bad” behavior: around e+16 (ah, double accuracy). I am aware of standard floating point gotchas, all I need is approximately 15 significant digits

I've watches the WWDC sessions and read the docs. It appears that there is absolutely no way to guarantee that an app will wake up and do background work at regular intervals. Is that the case? How are security tools such as MDM, MTD, EDR etc work, if they can't regularly sweep the device for signs of jailbreak and other policy violation? With this approach, how can iOS be recommended as a secure enterprise platform at all? Or there are other means to ensure that a security scan of the device can be taken at necessary intervals? Thanks!

The video discusses limits to background pushes. I'm unable to finish developing my app that uses NSPersistentCloudKitContainer on iOS 14 because I believe background push notifications are being limited by the system so I am unable to test how the app behaves when it is suspended and a background push arrives. In fact I cannot get any background pushes to arrive at all, however pushes do arrive when the app is running in the foreground. Is there perhaps a development entitlement or launch param to override all limits so I can finish my app? And if not, can this feature be added please?