Apple released a small update for the fourth beta versions of iOS 18 and iPadOS 18, which are still being tested by developers.
The update, numbered 22A5316K, probably fixes a security problem or a bug that was causing trouble.
Apple didn't explain what the update does, but it's likely something that couldn't wait for the next scheduled update.
This is a common practice for developers who want to make sure the software is safe and working well before it's released to everyone.
