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Senior VP Craig Federighi previews High Sierra at WWDC 2017.

macOS High Sierra (version 10.13) was released on September 25, 2017. It was promoted as the last version of macOS to support 32-bit software "without compromise". It also introduced the new APFS file system to take advantage of faster solid state drives and address the looming 2040 date limit from the aging Mac OS Extended file format.

High Sierra was a free upgrade for owners of supported systems from Apple Inc. Though it introduced support for Metal 2, it does not require a Metal-compliant GPU as its successor macOS Mojave does.

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