Apple has released third betas for iOS 9.3.3, OS X 10.11.6 and tvOS 9.2.2 for developer and public beta testers. The new updates contain bugs and stability fixes and do not contain any noticeable new features.
Second betas for iOS 9.3.3, OS X 10.11.6 and tvOS 9.2.2 were released a few weeks back. The new updates are available over-the-air if you already have the second beta installed. Just go to Settings > General > Check for updates for iOS and Apple TV or head on over to the Updates tab in Mac App store to download the new builds. Alternatively, you can get them directly from Apple by going to Apple Developer Center, to download and install the updates manually.
Apple announced iOS 10, tvOS 10, macOS 10.12 Sierra and watchOS 3 at WWDC 2016 just over a week back. The new updates contain tons of new features, especially for iPhone, iPad, and Apple Watch users. New updates like the opening up of Messages, Siri, Maps and Phone in iOS 10 to developers, redesigned notification center and improved 3D touch support will change the way users use their iPhones. Similarly, Apple Watch is getting an amazing new update in the for of watchOS 3 which will bring instant app launch, a multitasking dock, background app refresh and new watch faces to users.
The updates are expected to release this fall to the general public, while public beta testing should start in July. Till then, iOS 9.3.3, OS X 10.11.6 and tvOS 9.2.2 should serve as maintenance releases with bug fixes and stability improvements.