Apple on Tuesday seeded the first betas of iOS 12.1.2, macOS Mojave 10.14.3, and tvOS 12.1.2 to public beta testers. The public betas come one day after their release to developers. All three releases are minor updates that include the usual “bug fixes and improvements.”
iOS device users enrolled in the Apple Beta Software Program will receive the iOS 12.1.2 beta over-the-air via “Settings” -> “General” -> “Software Update” after installing the necessary configuration profile from Apple’s beta site.
The macOS Mojave 10.14.3 beta can be installed using the Apple macOS Public Beta Access Utility.
The tvOS beta can be installed by going to “Settings” -> “System” -> “Software Updates” -> “Get Public Beta Updates.”