Just a week after the third, Apple today released the fourth beta of the iOS 12.3 (compilation 16F5148a) of macOS Mojave 10.14.5 (18F127a) of watchOS 5.2.1 (16U5110a) and tvOS 12.3 (16M5146a).
In addition, Apple has also made available the Apple TV Software 7.3 beta 3 (12H836 compilation)
As we commented, the first test version of iOS 12.3 and tvOS brought the revamped Apple TV app.
These new builds of iOS, macOS, and tvOS should soon paint on the Apple Beta Software Program as well.
And, as always, if more relevant news comes, we will inform you here. 😉