There are quite a number of problems with running Dorico on macOS 10.14 Mojave, and I would strongly discourage users from updating to Mojave. An update to Dorico will be required to provide full compatibility, but we cannot currently say when that update will come, as we are waiting on some changes in the underlying Qt framework that Dorico is built upon. This year’s macOS update is one of the most disruptive for some time for independent software vendors, with big changes in font rendering and the security model, not to mention the introduction of the Dark Aqua theme.