Today, the latest version of macOS, called High Sierra, becomes publicly available.
Poker Copilot 6 works fully with High Sierra. You can safely upgrade your Mac and keep using Poker Copilot.
Note: if you are an early adopter, and you’ve been using a pre-release beta version of High Sierra, you’ll need to update to the general release. Otherwise you might find that Poker Copilot’s menus are missing. This is a problem that was affecting many apps with High Sierra beta versions. Apple have fixed this in the general release. In other words, if Poker Copilot’s menus are missing, check for any High Sierra updates and install them.