Two days after launching iOS 12.3 to the public, Apple is ready to begin testing on its next iOS 12 update.
The first iOS 12.4 beta is now available to registered developers. If you're a dev, you can download the update by going into Settings > General > Software Update on your iOS device or by pointing your computer's web browser at the Apple Developer Center. A public beta for testers in the Apple Beta Software Program should arrive soon.
There's no word yet on what big new features are included in iOS 12.4 because the first beta was just released. After developers have some time to install the update and dig into it, we should learn more about what Apple has planned for its next iOS 12 release.
Also rolling out today is watchOS 5.3 beta 1 for registered developers. Again, there's no word yet on what's included in this update, but we should hear more soon.