Surprise! Two weeks after releasing iOS 13.4, Apple has another iOS update ready to roll.

iOS 13.4.1 and iPadOS 13.4.1 are now available for download. As you might expect from an x.x.1 update, this is a fairly minor release, bringing a fix for a bug that'd prevent devices on iOS 13.4 from participating in FaceTime calls with devices running older iOS and OS X versions.

Here's Apple's changelog for iOS 13.4.1:

• Fixes an issue where devices running iOS 13.4 could not participate in FaceTime calls with devices running iOS 9.3.6 and earlier or OS X El Capitan 10.11.6 and earlier
• Addresses a bug with the Settings app where choosing Bluetooth from the quick actions menu on the Home screen would fail

If you've got an iOS 13-capable iPhone or iPad, you can grab this update by going into Settings > General > Software Update.