Apple has provided developers with its second round of betas for iOS 14.5, iPadOS 14.5, tvOS 14.5, and watchOS 7.4.
The newest builds can be downloaded via the Apple Developer Center for those enrolled in the test program, or via an over-the-air update on devices running the beta software. Public betas typically arrive within a few days of the developer versions, via the Apple Beta Software Program website.
The first beta of iOS 14.5 included a requirement that apps ask for permission before using the device's unique advertising ID, as part of Apple's inbound App Tracking Transparency feature. Other changes spotted included the ability to unlock Face ID while wearing a mask via an Apple Watch, support for the PlayStation 5 and Xbox Series X controllers, global 5G dual-SIM support, AirPlay 2 casting of Apple Fitness+ content, and other smaller updates.
On watchOS, additions included the new Unity Apple Watch face and the aforementioned Face ID assistance.
AppleInsider, and Apple itself, strongly recommend users don't install the betas on to "mission-critical" or primary devices, as there is the remote possibility of data loss or other issues. Instead, testers should install betas onto secondary or non-essential devices, and to make sure there are sufficient backups of important data before updating.