https://arstechnica.com/gadgets/2018/03/apples-macos-10-13-4-is-here-with-full-external-gpu-support/ >Apple has released the 10.13.4 update for macOS. This update adds external graphics card (eGPU) support for most recent Macs, implements Apple's new approach to privacy that we already saw in iOS 11.3, and adds Business Chat in the United States.