Categories Developer High Sierra MacBook Pro macOS News Software macOS 10.13.4 High Sierra final release notes leaked Post author By Chris Barylick Post date March 21, 2018 Apple may have accidentally leaked the final release notes for macOS 10.13.4 High Sierra. In French. The leaked document reveals that support for external graphics processors will finally be here, along with Business Chat in Messages. Tags 10.13.4, Apple, beta, bug, Business Chat, developer, eGPU, fix, High Sierra, leaked, MacBook Pro, MacOS, messages, release notes, spring, Thunderbolt, update, video card