Apple has posted the second developer beta of watchOS 5.1.2 and the third developer betas of macOS 10.14.2, iOS 12.1.2, and tvOS 12.1.1.

Registered developers can download the betas via Apple’s developer portal (https://developer.apple.com/account/#/welcome). Or they can be downloaded over-the-air once the proper configuration profile has been installed from the Developer Center.