Introduced a low-level graphics API that enabled VR (Virtual Reality) development and support for external GPUs (eGPUs) via Thunderbolt 3.
Released originally as a "refinement" update to macOS Sierra, version 10.13.6 marks the final build of the High Sierra era. While it lacks the flashy Dark Mode of its successor, Mojave, it remains a critical release for users of legacy Mac hardware. macos.high.sierra.10.13.6.dmg