Following the public release of iOS 10 and macOS Sierra today, Apple has also released iTunes 12.5.1, updating the design of Apple Music to match the new iOS 10 Apple Music app design, adding support for iOS 10 itself, and incorporating support for Siri and picture-in-picture video in macOS Sierra. iTunes 12.5.1 is available for download from Apple’s iTunes Download Page or via a software update in the macOS App Store.