Tonight cupertinos seeded a new test build of its operating systems. While the first beta version of iOS 12.3, macOS 10.14.5 and tvOS 12.3 available only to authorized developers. But in the near future Apple may release the Assembly and for members of the public testing.
Traditionally cupertinos did not share the full list of changes made in the new test builds. However, it is now known that in iOS 12.3 beta 1 has been added new Apple TV, as well as a few modified settings in the Wallet app.
Along with this, the cupertinos were supposed to make the operating system a number of minor changes designed to correct the shortcomings and errors that were found in previous releases. Most likely, this work was done in the new test builds of macOS and tvOS. In addition to tvOS 12.3 beta 1 cupertinos added a new app to Apple TV and included access to new channels.
It is expected that the final release of the new Apple operating systems will be held before the end of may.