Apple Tests Background Security Updates in iOS 26.3 and macOS Tahoe 26.3

Apple is testing a Background Security Improvement feature that first rolled out in iOS 26.1, iPadOS 26.1, and macOS Tahoe 26.1. Developers and public beta testers who are running iOS 26.3, iPadOS 26.3, or ‌macOS Tahoe‌ 26.3 can install a new Background Security Improvement update for testing purposes.

background security improvements
According to Apple, Background Security Improvements provide additional security protections between software updates for Safari, WebKit, and other system libraries.

Background Security Improvements can be installed by going to the Privacy and Security section of the Settings app, scrolling down, and selecting the "Install" option. If Automatically Install is toggled on, Background Security Improvements will be automatically installed when they come out.

Apple says that users who opt not to install the Background Security Improvements will receive the updates in a standard software update.

Apple previously had a Rapid Security Response update feature for delivering security improvements, but it wasn't used often after it was introduced in iOS 16, and was ultimately phased out in favor of Background Security Improvements. At one point in 2023, there was a Rapid Security Response bug that prevented some websites from displaying properly.

Apple warns that Background Security Updates can result in "rare instances of compatibility issues." Should that occur, the updates may be temporarily removed and enhanced in a subsequent software update.

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Top Rated Comments

ProbablyDylan Avatar
7 weeks ago

According to Apple, Background Security Improvements provide additional security protections between software updates for Safari, WebKit, and other system libraries.
Why not just decouple updates for Safari, WebKit, and other libraries from the OS? That way they can be updated frequently and as needed independently of the system.
Score: 18 Votes (Like | Disagree)
7 weeks ago

I don’t know why they’re still investing in this. They had it once and never used it.
Well they did use it twice and managed to break Facebook. Which I personally would love to see them do again, but I think it scared them off.

There are some rare instances it could be useful.
Score: 12 Votes (Like | Disagree)
nortonandreev Avatar
7 weeks ago
I don’t know why they’re still investing in this. They had it once and never used it.
Score: 8 Votes (Like | Disagree)
7 weeks ago
So, basically, it's the same feature with a new name?
Score: 8 Votes (Like | Disagree)
HouseLannister Avatar
7 weeks ago
Would be nice if they put it in 18.7.2 so people could patch WebKit without being forced to take Liquid Glass along with it.
Score: 7 Votes (Like | Disagree)
7 weeks ago

Would be nice if they put it in 18.7.2 so people could patch WebKit without being forced to take Liquid Glass along with it.
And 18.7.3.
Score: 5 Votes (Like | Disagree)