Apple introduced macOS "High Sierra" this week, and along with many other developers, we've eagerly started dissecting the new operating system to see what's new. Like in past years, those living on the bleeding edge are wondering, "Will CCC work with this new OS?". Or perhaps "when" prepended to that same question. The short answer is that we have already posted a version of CCC that offers preliminary support for High Sierra. If you're running the Developer Preview of the new OS, open CCC and choose "Check for updates" from the Carbon Copy Cloner menu to get the update.