Attention all iOS software developers — Apple just released iOS 12.1.3 beta 3 today, Monday, Jan. 7. This is the first update in quite some time for beta testers, as Apple released 12.1.3 beta 2 nearly three weeks ago. While we don't expect beta 3 to offer users a monumental upgrade to iOS, it's still an important update nonetheless.
At this time, it doesn't appear 12.1.3 dev beta 3 is much different from 12.1.3 dev beta 2. In fact, Apple only includes two resolved issues in its release notes, the same two resolved issues as in dev beta 2. However, the update brings valuable bug fixes and security patches to iOS 12.1.3, resulting in a more stable build for developers overall.
- Resolved an issue where some user interface elements were inaccessible to VoiceOver in the "Electrocardiogram (ECG)" and "Irregular Heart Rhythm Notification" sections in Health > Health Data > Heart. (46505168)
- Audio performance when using some third-party apps is improved on iPad Pro 12.9-inch (3rd generation) and iPad Pro 11-inch models. (46037111)
To download and update your iPhone to iOS 12.1.3 developer beta 3, you will first need to be a registered developer with a valid configuration profile. If you have iOS 12's "Automatic Updates" enabled, you can let the software update overnight. To install now, however, launch the Settings app, select "General," then "Software Update." Tap "Download and Install," then follow the on-screen prompts.
If we consider iOS 12.1.2 an extension of iOS 12.1.3, the only major feature to come out of new iPhone software in recent memory is eSIM bug fixes for iPhone XS, XS Max, and XR. These fixes are great news for owners of these iPhones, however, as more and more carriers are starting to adopt the technology on their networks.