Apple on Monday released the fourth betas of iOS 12.3, tvOS 12.3, watchOS 5.2.1 and macOS 10.14.5 to developers. Registered developers can install the updates via each platform’s respective OTA mechanism, or through Apple’s Developer Center.

As we’ve mentioned in previous beta posts, iOS 12.3 and tvOS 12.3 both include Apple’s new TV app. Unveiled at last month’s media event, the app features a more streamlined user interface and offers support for more apps and services.

Check out our full hands-on here

The betas also bring about support for Channels, an a la carte plan that allows users to pay for individual streaming apps without needing a cable/satellite subscription. Bug fixes and under-the-hood improvements round out the updates.

As usual, we’re installing today’s betas and will be sure to report back if we discover anything new worth noting. And of course if you spot something significant we haven’t mentioned yet, be sure to tell us about it in the comments below!