Apple's mobile phone is the latest version, and version update information keeps popping up. What happened?

Apple's mobile phone is the latest version, and the information that keeps popping up in the version update is an official BUG. You can solve this problem by turning off the update prompt function, as shown below:

1. Turn on the phone first, and click Settings on the desktop, as shown in the figure below:

2. Then click General, as shown in the figure below:

3. Then click Software Update, as shown in the figure below:

4, and then click the automatic update, as shown in the figure below:

5. Then slide the slide button of automatic update to the left to close it, so that you won't receive the update prompt, as shown in the following figure: