Apple has begun rolling out iOS 9.3.3 beta 3 to developers and public beta testers who haven’t already enrolled in the iOS 10 beta process. This build comes with a number of 13Y823 and is available for download via the Apple developer center or Settings > General > Software Update on your iOS device.
This update to the preview version of iOS 9.3.3 doesn’t include any user-facing changes, however additional bug fixes and security improvements are present. New features won’t be coming to customer’s devices until iOS 10 hits the public server this fall.
We’ll update this post if we find anything notable in the latest build.