Apple has just released iOS 9.0.1 and brings fixes for Safari, Setup Assistant, alarms and more.
If you are running iOS 9.0, you should definitely update to iOS 9.0.1 to gain increased system stability.
Here is the full change log for iOS 9.0.1:
- Fixes an issue where some users could not complete setup assistant after updating
- Fixes an issue where alarms and timers could fail to play
- Fixes an issue in Safari and Photos where pausing a video could cause the paused frame to appear distorted
- Fixes an issue where some users with a custom APN setup via a profile would lose cellular data
To update, connect to iTunes and check for update via the device summary page, or use the OTA update feature on your device found in Settings – General – Software Update.