https://arstechnica.com/gadgets/2018/06/apple-announces-macos-10-14-codenamed-mojave/

SAN JOSE—Apple detailed its next major operating system update at its Worldwide Developers Conference keynote today: macOS 10.14, which the company has named "Mojave," sticking with its California-based naming convention. Tim Cook told the audience that MacOS included a lot of new features for both everyday and pro users, and Craig Federighi kicked off the demo with something that will likely be near and dear to many Ars readers' hearts: dark mode.