If you are a general beta test, your Thursday became amazing. Apple just released the first public beta for iOS 12.3 today on March 28. This update comes directly on the heels of the first developer beta for 12.3, which was released one day ago. Thanks to this version, we know that this update includes a new TV app with updated layouts, Apple TV channel subscriptions, a new logo, and more.
After installing the update, you will notice that Apple TV channels are totally upgrading to the TV app, including the ability to pay and watch subscription services without having to leave the app. Apple offers free trials for Showtime, Smithsonian Channel Plus, Starz and Tastemade through this new service during the first beta period, with much more premium channels listed later.
Public beta probably contains bug fixes for problems found in previous versions of iOS, and possibly come with security spots for any vulnerabilities that may be. We do not know for sure because the release notes for this software are empty, and because Apple does not usually update everything that has changed.
To download and update your iPhone to iOS 12.3 public beta 1, you will first need to be a registered developer with a valid configuration profile. If you have enabled "Automatic Updates" in iOS 12, you can have the software updated overnight. To install instantly, launch the Settings app, select "General" and then "Software Update." Touch "Download and Install" and then follow the on-screen instructions.
Don't miss: All New Apple TV Features in iOS 12.3 for iPhone