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. MacOS Sierra requires at least 2 GB of RAM and 8 GB of storage space and will run on:
