iPhone 6 iOS 12.5.1 Update: What's New
The iPhone 6's iOS 12.5.1 update brings a bug fix for COVID-19 exposure notifications:
The previous version of iOS 12, iOS 12.5, brought support for COVID-19 exposure notifications.
iOS 12.5.1/iOS 12.5 let you opt-in to the COVID-19 Exposure Notifications system for your iPhone. System availability depends on support from your local public health authority.
This article may contain affiliate links. Click here for more details.