A few hours ago Apple launched a new version for users who have a 2018-inch or 13-inch MacBook Pro 15, on macOS High Sierra. In this case, it seems that it is an update that affects the 2018 models with Touch Bar and in principle the improvements that are implemented in this update are focused directly on the stability and reliability of the system on these computers.
Apple releases the new version and recommends installing it as soon as possible on computers, so don't delay the update too long. The build of these new versions is 17G2037 / 15P6805, so make sure your Mac has this new version installed and if not, update from the Mac App Store.
It seems that the failures reported by some users in this year's machines have led to the launch of this new version of macOS High Sierra, a final version that has nothing to do with the betas that are being released for the next version of macOS. For the rest of Mac users there is no update and we are still waiting for the official launch of the macOS Mojave version that will not take too long.
The stability and performance of the equipment depends largely on the OS And any problem of this type is always solved by Apple with an update, it may come sooner or later, but in all cases the problem is solved so that the machines work without failures.