Messages has rich links for previewing web content and watching video clips directly within the app, and it supports iOS 10 sister features like bigger emoji and ' Tapback' options for quickly responding to messages with icons like a heart or a thumbs up. A new ' Memories' tab creates curated collections of past photos to resurface old memories, and there's a new ' Places' album for displaying all photos on a world map.

In Photos, computer vision and new deep learning algorithms allow the app to recognize people, places, and things in images using facial, object, and scene recognition, using the information to group images into intelligent collections and enable powerful search capabilities. Siri can also do things like search through Photos, set reminders, initiate FaceTime calls, and more. There's also an option to pin Siri search results to the Today section of the Notification Center or to add them to documents to provide up to date information at a glance. Siri offers many of the same capabilities available on iOS, along with Mac-specific functionality like the ability to search through documents to quickly find files. The main new feature in macOS Sierra is Siri integration, bringing Apple's personal assistant to the Mac for the first time. Apple chose to do away with the OS X name in favor of the new 'macOS' name to bring the Mac operating system in line with iOS, watchOS, and tvOS. MacOS Sierra, the next-generation Mac operating system, was unveiled at the Worldwide Developers Conference on Jand launched to the public on September 20, 2016.

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