Apple today released iOS 10.0.2 whic hincludes bug fixes and improvements for your iPhone or iPad. This update:
• Addresses an issue that could prevent headphone audio controls from temporarily not working
• Resolves an issue that caused Photos to quit for some users when turning on iCloud Photo Library
• Fixes an issue that prevented enabling some app extensions
For information on the security content of Apple software updates, please visit this website: https://support.apple.com/kb/HT201222