Public testers, keep your eyes open. We expect Apple will eventually release the first public beta for iOS 12.1.2 on Tuesday. The company had already released the developer beta on Monday, December 10, which means the public beta will be hot on the heels. If the habits persist, you should soon see public beta version 1 of iOS 12.1.2.
Although a new beta update will be displayed in the near future, no new features will be displayed. We do not expect the public beta version 1 will ship with bells or whistles, as the developer version itself has none. There are probably only standard bug fixes and security patches, but there are still a few issues that need fixing.
Known Issues with Accessibility
Some UI Elements Are Invisible to VoiceOver in the "Electrocardiogram (ECG)" and "Irregular" Heart Rhythm Notification Under Health> Health Data> Heart. (46505168)
Solved Core Problems  Audio performance when using some third-party apps has improved on iPad Pro (3rd generation) and iPad Pro 11-inch models (46037111)
Fixing minor bugs and vulnerabilities is not bad at all, as updating should result in a more stable build of iOS, as this is the first release. In this beta, new bugs that were not found in 12.1.1 could be found. Take note of this.
To download and update your iPhone to public beta version 1 of iOS 12.1.2, you must first sign up for the Beta version login program and have a valid configuration profile. If iOS 12 automatic updates are enabled, you can have the software updated overnight. To download the beta now, launch the Settings app, choose General, and then Software Update. Tap "Download and Install" and follow the instructions on the screen.