Apple has released second beta versions for iOS 9.3.3, OS X 10.11.6, tvOS 9.2.2 and first beta version of watchOS 2.2.2 to developers. The new updates are minor in nature, with bug fixes and stability improvements. No new features have been found in these releases.
In case you are already registered Apple developer, simply head on over to Apple Developer Center, to download and install the updates manually. If you are already using beta 1 for these releases, simply 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.
The second public beta (or first in the case of watchOS) is not out yet for these updates but should be available in a few days.
Apple’s Worldwide Developer Conference for 2016 is right around the corner and it is expected that Apple would be announcing OS X (expected to be renamed to macOS) 10.12, iOS 10, watchOS 3 and tvOS 10, with major feature updates. The new updates are normally released in the form of developer and public betas while the final versions are rolled out by the third quarter of the year.