: Featured a new persistent sidebar, advanced editing tools (such as Curves and Selective Color), and improved "People" identification through neural networks.
The most significant change in 10.13 was the introduction of the as the default for Macs with all-flash storage. macOS High Sierra 10.13 (17A365)
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 : Featured a new persistent sidebar, advanced editing
: Optimized storage by using up to 35% less disk space and introduced "Top Hits" in search results to surface the most relevant emails. Technical Specifications Positioned as a refinement of the preceding macOS
: Introduced support for external GPUs and advanced machine learning, providing developers with lower-overhead access to the Mac's graphics processing unit.
: Improved JavaScript performance by 80% and introduced Intelligent Tracking Prevention to block cross-site tracking. It also added the ability to disable auto-playing videos globally or on a per-site basis.