iOS 10.0.3 fixes bugs including an issue where some users could temporarily lose cellular connectivity.
For information on the security content of this update, please visit this website: https://support.apple.com/kb/HT201222
A growing number of Verizon subscribers are complaining about a serious issue that causes them to regularly lose LTE connectivity on their iPhone 7 and iPhone 7 Plus devices, suggesting a major bug that needs to be resolved by either Apple or Verizon. « Mac Rumors »
Complaints about call connection problems with Apple Inc.’s iPhone 7 models are spreading across social media in China just weeks after the devices were released. « Bloomberg »