Apple officially released the iOS 12.3.2 system update this morning, just two weeks before the iOS 12.3.1 release.
According to Apples update, todays iOS 12.3.2 only targets the iPhone 8Plus, which repairs a Bug in the devices portrait shooting function, which has no depth-of-field effect. Therefore, the iOS device that is not the 8Plus of the iPhone cannot see the update alert.
In addition to the new iOS 13, which will be released in September, Apple is currently testing iOS 12.4. According to the rhythm of previous beta updates, iOS 12.4 is expected to be officially released soon.
Users using the iPhone 8Plus can update it! (1am)
Source: Wang Fengzhi_NT2541, responsible editor of Weifeng.com