iOS 8.2 is available today as an over-the-air download.
Apple is already working on the next update to iOS, iOS 8.3, and iOS 8.4 is also said to be in the works.
Update 11:52 AM: iOS 8.2 is now available as an over-the-air download.
Article Link: Apple to Release iOS 8.2 Today With Support for Upcoming Apple Watch [Update: Out Now]