It has been almost two weeks since Apple introduced the iOS 12.3 beta 1 version. The update brings initial code-level support for some of the features announced during the “It’s Showtime” event, including the Apple Card will be paired in a similar way to AirPods, and Apple today introduced the iOS 12.3 Developer Preview Beta 2.

The update notes for iOS 12.3 Developer Preview Beta 2 only mention bug fixes and improvements, but a major feature of this new beta is the redesign of Apple’s TV app. As announced during the March event, the new Apple TV app brings together different ways to discover and watch shows, movies, sports, news, and more on iPhone, iPad, Apple TV, Mac, smart TV and streaming devices.

In addition, Apple also pushed a second developer preview of watchOS 5.2.1, tv OS 12.3 and macOS 10.14.5.

Which devices can be upgraded

iOS 12 compatible devices include:


iPhone XS, iPhone XS Max, iPhone XR, iPhone X, iPhone 8, iPhone 8 Plus, iPhone 7, iPhone 7 Plus, iPhone 6s, iPhone 6s Plus, iPhone 6, iPhone 6 Plus, iPhone SE, iPhone 5s.


iPad Pro 11, iPad Pro 12.9, 12.9-inch iPad Pro second generation, 12.9-inch iPad Pro first generation, 10.5-inch iPad Pro, 9.7-inch iPad Pro, iPad Air 2, iPad Air, iPad fifth generation, iPad sixth generation, iPad mini 4, iPad mini 3, iPad mini 2.


iPod touch the sixth generation

Update method

1. iTunes upgrade: Download the firmware, open the latest version of iTunes on the desktop, press “Shift+Update” at the same time, select the firmware to be brushed in, and the following action will be handed over to Apple.

2. description file OTA update: directly use Safari browser to open the corresponding, install and restart, directly check and download the installation update under the system update; ordinary users can register, install the public beta version of the description file.