Nice job highlighting the major features in macOS High Sierra. Don’t miss the section towards the bottom called “Additional app refinements”.
My favorite is the very last one:
Spotlight provides flight status information, including departure and arrival times, delays, gates, terminals and even a map of the flight path
Interesting.
That last one is likely due to Google being the new default. Here’s what you get when searching for just a flight number.
https://www.google.com/search?q=DL1&rlz=1C1GGRV_enUS755US755&oq=DL1&aqs=chrome..69i57j69i60l5.735j0j4&sourceid=chrome&ie=UTF-8