Following up on the release of the second beta of iOS 11.4, Apple has released the second beta of the next build of MacOS High Sierra, MacOS 10.13.5. The update is available to testers who have registered their devices in the Apple beta program. If you have a registered device, the update should be available to you through the Mac App Store.
Not much is known about what is included in this second beta as Apple tends to not release many details on it. Given it is a “dot” release, it more-or-less focuses on bug fixes and performance improvements as well as refinements to apps on the platform. One thing that is known is that MacOS 10.13.5 will bring Message on iCloud which is now also in the afore mentioned second beta of iOS 11.4.
For those that don’t recall, Messages in iCloud will allow syncing of Messages to your iCloud account, allowing for an archive of sorts for your messages as well as allowing you to save photos and videos sent to you in iCloud and not on your iPhone, iPad, or Mac. This will save you storage space, especially on your iDevices.
No word yet on when we can expect 10.13.5 to go public but it is likely going to be sometime over the summer.