macOS High Sierra iCloud Upgrades
When you want to share a large file, you can now do this through iCloud. Also, you can now share iCloud plans with your family -- finally.
Many of us are paying for iCloud Storage plans on our iPhone, on a spouse's iPhone, and maybe two or three other iPhones. With macOS High Sierra you can now share iCloud storage with your family so that you can buy one plan that fits the family instead of multiple plans.
When you store something in iCloud Drive, you can click to get a link to a file and then send it to anyone else with iCloud. We love this feature on Dropbox and it's nice to see something similar on iCloud Drive.