iOS 9.0.2 features bug fixes, improvements, as well as under-the-hood enhancements such as:
- An issue with the setting to turn on or off app cellular data usage has been fixed
- An issue that prevented iMessage activation for some users has been fixed
- An issue where an iCloud backup could be interrupted after starting a manual backup has been fixed
- An issue where the screen could incorrectly rotate when receiving notifications has been fixed
- The stability of Podcasts has been improved
- A lock screen issue allowed access to photos and contacts on a locked device via Siri has been fixed