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Late on Friday, Apple uncharacteristically issued an update to its current developer beta four of both iOS 18 and iPadOS 18.
![Smartphone screen displaying sleep data, heart icon, butterfly icon, clock, home icon, and a book cover with the title Dragosong by Anne McCaffrey.](https://i0.wp.com/photos5.appleinsider.com/gallery/60508-124441-ios-xl.jpg?fit=640%2C738&ssl=1)
iOS 18
![Smartphone screen displaying sleep data, heart icon, butterfly icon, clock, home icon, and a book cover with the title Dragosong by Anne McCaffrey.](https://i0.wp.com/photos5.appleinsider.com/gallery/60508-124441-ios-xl.jpg?fit=640%2C738&ssl=1)
iOS 18
On Friday, Apple released an update to its fourth developer beta for iOS 18 and iPadOS 18. The build numbers on both were previously 22A5316j and now are 22A5316K.
Apple has not said what the update entails, so it’s likely a security or urgent bug fix that couldn’t wait for the next expected refresh.
Apple rolls out minor update to iOS 18 & iPadOS 18 beta 4
Apple rolls out minor update to iOS 18 & iPadOS 18 beta 4