macOS High Sierra 10.13.5 can be downloaded directly from the Mac App Store or via the Mac App Store software update feature all compatible Macs that already run macOS High Sierra.
The macOS High Sierra 10.13.5 update introduces support for Messages in iCloud, a feature which Apple has tested and worked since the announcement of macOS High Sierra last June.
As the name suggests, the messages stored in iCloud store your iMessages in iCloud rather than each of your devices, improving multi-device synchrizati and saving storage space your device. 39; device. Messages in iCloud support is also available in iOS 11.4, which was released to the public earlier this week.
macOS High Sierra will be followed by macOS 10.14, a new versi of macOS that Apple is expected to present at the Worldwide Developers Cference next week.