The update also addresses an issue where the 'Hey Siri' feature occasionally stops working. And...that's it. Even the security content is the same as the 11.1 release, meaning Apple pushed this update out just to fix these two issues. Consider your outrage heard, given that Apple could have waited to fix until the forthcoming 11.2 update; Reportedly, some GPS issues with the iPhone 8 and iPhone X are fixed in the 11.2 beta.