Since the official version of iOS 11 was launched, various bugs have emerged one after another, which has annoyed iPhone users. Even the writer himself has encountered a lot of bugs that make me laugh and cry, such as sliding god frame, icon disappearance, unlocking keyboard disappearance, etc.

However, the installation rate of iOS system is quite high every year, and this year is no exception. Since the official launch in September, the penetration rate of iOS 11 has reached 59%. Look at the Android system next door. As of November 9, only 0.3% of Android devices have been upgraded to the latest Oero.

Then look at the performance of iOS 11. Compared with the previous two years, the penetration rate of iOS 9 reached 67% in the middle of November 2015, and iOS 10 reached 60% at the end of October last year. From this point of view, it seems that the performance this year is not so good. A large part of the reason may be that it has been criticized by people and the new system will lead to old device cards flying（ For example, iPhone 6 3 years ago ）。

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