Today Apple released iOS 11.0.3 for the iPhone and iPad with audio and haptic feedback fixes. iOS 11.0.3 is the third update to iOS 11 as iOS 11.0.2 was released last week and iOS 11.0.1 the week before.
The update particularly focuses on the iPhone 7 and iPhone 6s. Apple said 11.0.3 addresses a haptic feedback problem with the iPhone 7 and 7 Plus, as well as issues with the iPhone 6s touchscreen. In the release notes, Apple also added a disclaimer that non-genuine replacement displays could have compromised visual quality and may not function correctly.
If you want to download and install iOS 11.0.3, go to the Settings app > General > Software Update on your device. Or you can plug in your device to your computer and install the update through iTunes. I will update this post once I find out more about what other fixes the update includes.