There’s a brand-new update for iOS and iPadOS, and you shouldn’t dawdle about installing it. While version 14.4 of the two operating systems might not sound like it has a lot going on beyond rather generic “improvements and bug fixes” for your iPhone or iPad, there’s a bit more under the hood that you need to know…
source https://lifehacker.com/install-ios-ipados-14-4-today-to-block-three-big-vulner-1846142416