Apple on Tuesday released the fifth beta builds of iOS 12.3, tvOS 12.3, watchOS 5.2.1, and macOS 10.14.5 for testing by developers. Also released is a fourth beta build for the third-generation Apple TV software version 7.3.
The fifth iOS 12.3 beta is build number 16F5155a, which replaces the fourth build, 16F5148a. The fifth build of watchOS 5.2.1 is build number 16U5113a, replacing build 16U5110a. The fifth build of tvOS 12.3 is build 16M5151a, replacing the fourth build 16M5146a. macOS 10.14.5’s fifth beta, build 18F131a, is the replacement for the fourth build, 18F127a. (Build info via AppleInsider)
Also released today is a fourth version of Apple TV Software 7.3, for the third-generation Apple TV. The build is number 12H836, which replaces the initial build of 12H836.
The new builds are available to developers over the air on the devices with the proper configuration installed. Developers can also download the new betas from the Apple Developer Center.
As usual, MacTrast and Apple both warn users to not install the beta on your daily driver iPhone, iPad, Apple TV, Apple Watch or Mac computer, instead only install it on a device set aside for testing purposes.