Macos High Sierra 10.13 (17a365) May 2026

: Featured a new persistent sidebar, advanced editing tools (such as Curves and Selective Color), and improved "People" identification through neural networks.

Technical Overview: macOS High Sierra 10.13 (Build 17A365) macOS High Sierra version 10.13 (Build 17A365) was officially released on September 25, 2017. Positioned as a refinement of the preceding macOS Sierra, it focused heavily on "under-the-hood" performance improvements and architectural updates rather than aesthetic overhauls. System Core & Architecture macOS High Sierra 10.13 (17A365)

: Introduced support for external GPUs and advanced machine learning, providing developers with lower-overhead access to the Mac's graphics processing unit. : Featured a new persistent sidebar, advanced editing