Auto Unlock requires a Mac that was introduced in 2013 or later. Time of flight is used to prevent relay attacks. With Auto Unlock, the user can unlock their user account by holding a paired Apple Watch close to the device. Auto Unlock and Universal Clipboard īuilding upon Continuity, an 'umbrella term features that facilitate the communication between ' using Bluetooth and Wi-Fi, Sierra adds two features. iTunes can delete watched, purchased films and TV programs from its library. It can also remove old files from trash automatically. For instance, the user can let the system upload old files to iCloud Drive and remove their local copies, keeping them available on-demand in Finder. The System Information application has a new section that gives the user detailed information about space usage per application or file and provides tools and suggestions for freeing up space. ICloud Drive can upload the user's documents and desktop directories and sync them to other devices. This image shows what the Optimized Storage suggestions are The default desktop picture is an image of Lone Pine Peak. This requires using a patch to modify the install image. Developers have created workarounds to install macOS Sierra on some Mac computers that are no longer officially supported as long as they are packed with a CPU that supports SSE4.1.

Sierra is the first version of macOS since OS X Mountain Lion, released in 2012, that does not run on all computers that the previous version supported. MacBook and MacBook 12-inch: Late 2009 or newer.MacOS Sierra requires at least 2 GB of RAM and 8 GB of storage space and will run on: 2.2.7 Other applications found on macOS 10.12 Sierra.2.1.3 Auto Unlock and Universal Clipboard.

2.1.2 iCloud Drive and Optimized Storage.

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