Apple released iOS 8.1, the first major update to iOS 8 which launched in September alongside the iPhone 6 and 6 Plus



From Anandtech:

Today Apple released iOS 8.1, the first major update to iOS 8 which launched in September alongside the iPhone 6 and 6 Plus. Prior to 8.1 we got a small bug fixing update in the form of iOS 8.0.1, which was quickly followed by iOS 8.0.2 due to a major bug that broke Touch ID and cellular connectivity on the newly released iPhones. Since then, Apple has been working on implementing some features that were not finished in time for the original launch, as well as making changes based on user feedback.

The first such change is the re-addition of the camera roll. The camera roll was part of iOS since its early releases, and with iOS 8 it was removed in favor of a recently added photos album. This solution was more accurately named than the camera roll which was really an album that held every photo on the device, but it was not as familiar to users and did not display every single photo. Users have been very vocal about their dislike of this change and with iOS 8.1 the camera roll returns with the same behaviour as previous versions.

  Apple Releases iOS 8.1 With Bug Fixes and New Features