![]() This feature was released in OS X 10.5 Leopard. No matter which way you choose, always remember to back up your data before performing an upgrade.Īpple has its own official backup tool: Time Machine. There are two ways to upgrade macOS: directly in Mac App Store, or upgrade using an USB device. If you are running OS X Lion (10.7.5) or later, you can upgrade directly to macOS High Sierra. ![]() Some features, such as High Efficiency Video Coding (HEVC) encoding and decoding require newer processors and devices, some of which unfortunately cannot run on older devices. ![]()
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