An update leading to a completely non-functional device is obviously a big problem. Apple doesn’t often have problems with its software update rollouts,.
Apple doesn’t often have problems with its software update rollouts, even though it’s making them available to all devices at the same time and not releasing them in stages like other companies do. But when it does run into issues, rarely as that may be, said issues are big.
Case in point: MacRumors is reporting that the rollout of iPadOS 18 for the M4 iPad Pro, which started yesterday, has now been halted by Apple due to multiple reports of bricked iPads following the update.