After releasing a new iPad and a new 4" iPhone today at its event, Apple also released the final version of the next minor iterations to their operating systems, which have been in beta for some time.
Watchos 2.2 RSS
Today, Apple released the sixth build in their current beta cycle, including iOS 9.3, OS X 10.11.4, and watchOS 2.2. New public betas for iOS 9.3 and OS X 10.11.4 are also available.
Apple has released the fifth iteration of their latest beta cycle, including iOS 9.3, OS X 10.11.4 El Capitan, watchOS 2.2, and tvOS 9.2. For a minor update, there are quite a few features.