Just a week since they pushed its iOS 9.0.1 update, Apple is rolling out a new one that’s available for download on your iPhone, iPad and iPod Touch.
The new iOS 9.0.2 update that weighs about 74MB fixes a couple of bugs which covers switching on/off mobile app data usage, iMessage activation, iCloud Backup and screen orientation. To download, just head over to Settings > General > Software Update. You can do this over the air or via iTunes on a computer.