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. Workarounds for unsupported systems ĭevelopers 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. Support for Xserve was also dropped in Sierra. Sierra dropped support for various Macs released from 2007 to early 2009, the first version of macOS since OS X Mountain Lion, released in 2012, to do so. MacOS Sierra requires at least 2 GB of RAM and 8 GB of storage space and is designed to run on the following products:

It was released to end users on September 20, 2016, as a free upgrade through the Mac App Store and it was succeeded by macOS High Sierra on September 25, 2017.

The first public-beta release followed on July 7, 2016. The first beta of macOS Sierra was released to developers shortly following the 2016 WWDC keynote on June 13, 2016. Its major new features concern Continuity, iCloud, and windowing, as well as support for Apple Pay and Siri. Sierra is named after the Sierra Nevada mountain range in California and Nevada. The name 'macOS' stems from the intention to uniform the operating system's name with that of iOS, watchOS and tvOS. MacOS Sierra (version 10.12) is the thirteenth major release of macOS (formerly known as OS X and Mac OS X), Apple Inc.'s desktop and server operating system for Macintosh computers.

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