Apple releases the third public betas for iOS 14.2 and iPadOS 14.2 a day after releasing the developer betas for the same releases.
Arriving a day after the developer betas went live, the public beta can be downloaded from Apple's Beta Software Program site. The beta content is likely to be the same as what was provided in the developer version.
In the third beta of iOS 14.2 does not seem to have any noticeable new features with only bug fixes listed in the release notes. The second beta introduced new emoji for the Unicode 13 release. In total, there are 58 new characters, faces, objects, and animals coming with iOS 14.2.
The first beta of iOS 14.2 saw Shazam added to Control Center as well as a redesign of the Now Playing interface and people distance to the Measure accessibility app.
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.