This week Apple rolls out the second beta of iOS 11.3 for developers and public beta testers. The beta of the iOS 11.3 provides an option to store all your messages in iCloud instead of on individual devices. The new Messages in iCloud allows users to save the messages in iCloud and sync them across devices. Once this feature is enabled, you can delete a bunch of messages on your iPhone and the change will be synced to all your Apple devices that are logged in to the same iCloud account.
Messages in iCloud saves the storage space on your local devices. When you upgrade to iOS 11.3, you will be prompted to run on this feature when first launch the app. And it is automatically enable for users who have enabled two-factor authentication and iCloud Backup. But how to manually enable/disable the Messages in iCloud?
First of all, your iPhone should be running iOS 11.3. Currently developer and public testers can get the beta update from Settings > General > Software Update.
Afterwards, you should go to check how much space you can use in your iCloud account (Settings > [your user name] > iCloud) and how much space your iMessages app is currently taking up (Settings > General > iPhone Storage < Messages).
Now proceed to enable the feature. In the Settings app, tap the Apple ID on the top of the page, then tap iCloud and toggle on Messages. You may be prompted to set up two-factor authentications if you have not done that before. Just follow the prompts to complete the process. As the Messages is toggled to ON, open up the Message app, and click Continue button in the prompt to start using the new feature.
Meanwhile, the beta of macOS 10.13.4 also incorporates the Messages in iCloud. To enable this feature on your Mac, open up the Messages app, choose Messages > Preferences from the menu bar. Then click the Accounts tab, and select the iMessage account listed on the left side of the pane. On the right pane, check the box saying Enable this account and then the box saying Enable Messages on iCloud.
Other new features included in the iOS 11.3 are new Animojis on iPhone X, ARKit 1.5, Business Chat for iMessage, Health Records in Health app, and more.