https://arstechnica.com/gadgets/2019/05/apple-releases-ios-12-3-macos-10-14-5-watchos-5-2-1-and-tvos-12-3/ > Today, Apple began rolling out new versions of its iOS, macOS, watchOS, and tvOS operating systems for iPhones and iPads, Macs, Apple Watches, and Apple TVs, respectively. > The updates are largely focused on the video services that Apple announced at its March 25 event—namely, a revamped Apple TV app, Apple TV Channels, and an expansion of AirPlay 2 to devices produced by Apple's partners. A handful of bug fixes, performance optimizations, and other small tweaks are also included in the updates.