This means that updated iPhones and iPads will not be able to return to the older version.
iOS 18.3.2 was released on March 11 with an important security patch. According to Apple, this update fixes a vulnerability that could be exploited to run malicious content. Notably, Apple admitted that this vulnerability was exploited in an "extremely sophisticated attack targeting a number of specific individuals".
Meanwhile, iOS 18.3.1 released on February 10 is also a security update, fixing the error that allows attackers with physical access to the device to disable USB Limitation mode even when the device is locked. This is a feature that requires enterting a password when connecting an iPhone or iPad to a computer or other device via a USB port.
blocking downgrading to older iOS versions is a familiar measure of Apple to protect users from the risk of cyber attacks.
Although Apple always recommends that users update software to ensure optimal security and performance, the new iOS versions are not always perfect.
Some users may experience errors or poor performance on old devices after upgrading. Therefore, before upgrading, users should check the community's assessment, back up important data and ensure that the device has enough empty space.
In the coming time, Apple may continue to release minor updates to fix errors and improve performance. Therefore, if there is a problem with iOS 18.3.2, users can wait patiently for the next update instead of wanting to upgrade to the previous locked version.
