Apple has released High Sierra 10.13.6 which will probably be the end of the line for the much maligned High Sierra macOS. As is my practice, I downloaded and installed the Combo Updater. I have had no issues during or after install. If you are running the High Sierra OS, it probably is a good idea to install this update in preparation for macOS Mojave coming in the Fall. All the other device OS’s received updates as well, mostly security related. If you wish to see a more detailed list of what was fixed or replaced in High Sierra, check out this article.