Apple has begun rolling out iOS 9 to users. Key features in the new update include proactive assistance, Spotlight search, iPad multitasking, ad blocking, the News app, an updated Notes app, transit maps, security improvements and some design changes.
However, Apple has delayed the release of watchOS 2, the latest version of the Apple Watch operating system that was supposed to launch Wednesday. A company spokesperson said, "We have discovered a bug in development of watchOS 2 that is taking a bit longer to fix than we expected. We will not release watchOS 2 today but will shortly."