As promised, Apple on Monday released iOS 8.1 for public consumption. Users who have an older version installed on their iPhone, iPod touch or iPad can now update to the latest software over-the-air, by choosing Software Update under Settings > General.
iOS 8.1 flips the switch on Apple Pay in the United States on the iPhone 6 and iPhone 6 Plus, as well as the newly released iPad Air 2 and iPad mini 3.
It also re-enables the missing Camera Roll album in Photos and beta iCloud Photo Library (in beta) while bringing additional Continuity features like Text Message Forwarding between iOS 8 devices and Yosemite Macs and more.