iOS 12.4 is now rolling out, the fourth major update to the iOS 12 operating system that first launched in September 2018. The update is coming 2 months after the release of iOS 12.3, an update that brought the apple TV.
According to Apple’s release notes, the update introduces a new iPhone migration option to wirelessly transfer data and migrate directly from an old iPhone to a new iPhone during setup, and it introduces enhancements to Apple News+.
The iOS 12.4 update is available on all eligible devices over-the-air in the Settings app. To access the update, go to Settings –> General –> Software Update.
iOS 12.4 updates is free to download, but it may take some time for iOS 12.4 to propagate to all iOS users.