10.13.4 Build 17e199 | Macos High Sierra

: Supporting the "clamshell" mode (using an eGPU while the MacBook display is closed) and hot-plugging, which allowed for immediate activation without logging out.

: Creating and consuming immersive VR content using headsets like the HTC Vive. macOS High Sierra 10.13.4 Build 17E199

The Evolution of the Desktop: macOS High Sierra 10.13.4 (Build 17E199) : Supporting the "clamshell" mode (using an eGPU

: Accelerating workloads in Metal, OpenGL, and OpenCL. and OpenCL. Released on

Released on , macOS High Sierra 10.13.4, specifically Build 17E199 , represented a pivotal moment in the refinement era of Apple's desktop operating system. While High Sierra was largely marketed as a "refinement" update—similar to Snow Leopard or El Capitan—this particular build introduced foundational technical shifts that redefined professional workflows and personal privacy.