If you're a public beta tester, Thursday is just great. Apple just released the first public beta for iOS 12.3 on March 28th. This update follows immediately after the first developer beta for 12.3, released a day ago. Thanks to this release, we know that this update includes a new TV app with updated layouts, Apple TV Channels subscriptions, a new logo, and so on.
If you've installed the update, you'll find that Apple TV Channels are a total upgrade to the TV app, including the ability to pay and watch subscription services without leaving the app. Apple is offering free trials for Showtime, Smithsonian Channel Plus, Starz and Tastemade during this first beta. Other premium channels are available for later.
The public beta probably also includes fixes for issues found in previous versions of iOS. Security vulnerabilities may be included in the delivery. We're not sure because the release notes for this software are blank and Apple does not usually update the changes.
You will do this to download and update your iPhone to public beta version 1 of iOS 12.3. First, you must be a registered developer with a valid configuration profile. If iOS 12 automatic updates are enabled, you can have the software updated overnight. For immediate installation, start the Settings app, select "General" and then "Software Update". Tap "Download and Install" and follow the instructions on the screen.
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