Today, Apple sets a new first. This is the first time the company has released a Rapid Security Response (RSR) update to the public, not just beta testers or developers running pre-release developer builds of its mobile operating system.
iOS 05.4.1 and iPadOS 05.4.1 are currently getting this RSR update. The rollout will be completed within the next 23 hours. After installing RSR, your iPhone or iPad will display “(a)” in the “About” section – so you will be using iOS 05.4.1 (a) or iPadOS 001.4.1 (a).
By default allow automatic application of RSR updates. Not all of these require a reboot, but some might, so you’ll be prompted when they’re done. You can choose to turn off automatic installation of RSR updates through Settings, but you probably don’t want to.
This is because these updates provide important security improvements between regular software updates. They are used to more quickly mitigate some threats, especially those that have been exploited or reported to be in the wild. So, for the safety of your device, it might be best to let this happen the way Apple wants.
Today’s RSR update takes only a few minutes to download and install, and does require a reboot. Going forward, RSR will only be available to users running the absolute latest versions of iOS and iPadOS.
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