How about ios 12.2? Do you recommend upgrading?

Apple 12.2 system is ok, smoother and more power-saving, with optimized interface, more stable and can be upgraded.

Apple's iOS 12.2 adopts the latest Swift 5 kernel programming language, which reduces the capacity of the APP and improves the running speed of the APP. The fluency of the sensory system has been improved to a certain extent. Through the actual experience during this period, when playing the game of Eat Chicken and the glory of the king, the frame drop is reduced, so don't worry about the fluency.

Many people have been complaining about the battery life and signal problems of Apple's mobile phone, so they have been looking forward to improving it by upgrading the system. Among them, I saw many users who upgraded iOS 12.2, and some netizens reported that their endurance was reduced, so some people who didn't upgrade were afraid.

At present, after the iphone8 is upgraded to iOS 12.2, the battery life is not much different. The decline in endurance may be related to two aspects: First, if the upgrade method adopts OTA, the system will be unstable, and it is recommended to use iTunes to upgrade; Second, if the battery health is about 80%, replacing the battery is the best choice.

The upgrade of iOS 12.2 will not improve the signal problem of iphone xs series mobile phones, and there is still no signal in the underground garage with weak signal. After the upgrade, it shows that the "5G E" network is purely an oolong event. IOS 12.2 supports the VoLTE function of telecom. The American version of xs does not need Cato, and the call function can be realized directly through VoLTE.