Apple has rolled out a fourth set of iOS 10.3.2, tvOS 10.2.1, and watchOS 3.2.2 betas to registered developers. The iOS 10.3.2 beta 4 release notes list SiriKit, VPN, and Siri fixes, while tvOS 10.2.1 beta 4 fixes an issue that caused the Apple TV to sometimes wake from sleep with an AirPlay error.