Apple provides first developer betas of iOS 12.3, tvOS 12.3 & new beta for third generation Apple TV
Following the public release of its operating systems on Monday, Apple has recommenced the beta testing process, starting with the first developer betas for iOS 12.3 and tvOS 12.3, as well as one for the third-generation Apple TV.
The new builds can be acquired by developers in the beta as an over-the-air update on devices enrolled into the program, or via the Apple Developer Center. Public beta versions of each operating system normally arrive a few days after the developer betas, and are made available via the Apple Beta Software Program website.
The first build of iOS 12.3 is number 16F5117h, while tvOS 12.3's first build being 16M5117f. The beta for Apple TV Software 7.3 is build 12H825.
It is likely similar betas will be made available for macOS Mojave and watchOS in the near future.
The last set of betas reached six generations before release, though this is not a general guideline for when to expect a new public release. Depending on the features and changes in the new betas, there could be a higher or lower number of build cycles required to get the software ready for release.
It is currently unclear what exactly users can expect to see in the latest betas, but release notes and testing of the new builds will take place shortly after they are issued.
The most recent release of iOS 12.2 introduced quite a few changes, including four new Animoji characters, improvements to Control Center and the lock screen, Wallet, News app, and HomeKit TV support.
AppleInsider, and Apple itself, strongly suggest users avoid installing betas on to "mission-critical" or primary devices, due to the potential for data loss or other issues. It is instead recommended to install betas onto secondary or non-essential devices, and to ensure there are sufficient backups of important data beforehand.