CONTENT CACHING A cool new feature for those of us with multiple devices. In MacOS 10.13.4 go to System Preferences > Sharing, turn Content Caching ON, allocate some disk space for the cache and to speed things up restart. This will cause updates and app installs to be cached on the system and when other devices make the update it will get it from this cache saving a LOT of download time. According to the documentation it can take a while for other devices to become aware of the cache, but supposedly it works with MacOS 10.13.4 and iOS 11.3 devices. I have just turned it on so I cannot vouch for how well it works yet.
