Apple stops signing iOS 12.3.1 and iOS 12.3.2

Late last night Apple officially stopped signing iOS 12.3.1 and 12.3.2. This comes just over a week after releasing iOS 12.4 to the public. Users can no longer downgrade lower than iOS 12.4.

Apple is currently well into testing iOS 13 ahead of its fall release. iOS 12.4 fixes some security bugs and maybe the last firmware for legacy devices such as the iPhone 6.