In fact, compared to iOS 11.4, you can also see from the name alone, iOS 11.4.1 is only a minor version update, in fact it is indeed the case.

Judging from the details given in the latest beta, Apple mainly fixes the bug in iOS 11.4.1, stabilizing the system's smoothness.

According to previous statements, Apple may release the official version of iOS 11.4.1 as soon as this month, which is the last version of iOS 11 updated.