Apple today released iOS 27.0.1, the first update for the iOS 27 update that came out two weeks ago. iOS 27.0.1 can be downloaded over the air by going to Settings > General > Software Update. Apple has also released iPadOS 27.0.1 and visionOS 27.0.1 updates, as well as iOS and iPadOS 26.7.1 updates for devices not updated to iOS and iPadOS 27.

According to Apple's release notes, iOS 27.0.1 addresses an issue that could cause Face ID not to work properly on the iPhone 18 Pro. Some iPhone 18 Pro users have complained that authentication can fail to work for things like unlocking a locked app. In some cases, the device freezes up and then reboots. Other users have seen a "Face ID is Not Available" message when attempting Face ID setup, and others have experienced issues with the Require Attention for Face ID setting.

Apple's release notes for the update include fixes for the following issues: iPhone 18 Pro and iPhone 18 Pro Max may unexpectedly restart when Face ID fails to authenticate; a color artifact may appear on photos captured at 2x under certain lighting conditions at f/1.48 on a small number of iPhone 18 Pro and iPhone 18 Pro Max devices; and opening Notification Center and Control Center simultaneously may cause the touchscreen to become unresponsive.

The iPhone 18 Pro models have an infrared camera that's under the display for the first time, but it's unclear if the hardware has been causing a problem. Apple said last week that it would be able to address the Face ID bugs with a software update. While the iOS 27.0.1 update has multiple iPhone 18 Pro bug fixes, it is available for all iPhones able to run iOS 27.