Apple has just now seeded the fifth beta of iOS 9.3.3 to developers. This comes a week after the fourth release. We don’t see new betas for the other operating systems just yet. This likely means that there was a major issue with the version that had to be updated. In this version of iOS we see some minor bug fixes and performance improvements.
Developers can get the latest beta from the Settings app. If you don’t have it yet, you can download it from the Apple Developer Center.