Well here we have the latest batch of betas just before the WWDC 2017: Apple has made available to all developers Beta 2 macOS Sierra 10.12.6, iOS 10.3.3, tvOS 10.2.2 and watchOS 3.2.3.
You can now download them as any other software update if you are a developer and have a previously downloaded beta.
This is a minor update on the four platforms, which polish some stability and security errors. There is no important news, these are already reserved for what we want to present in the keynote next week.
The iOS 10.3.3 beta talks about the possibility of updating iOS devices from a remote server, something that is under development.
The last betas of the current versions
Remember that all these beta versions are aimed at developers, are not public and therefore are not intended for the general public. In addition, to update the Apple Watch you must have it with a load greater than 50% of battery and connected to the power adapter or to a Mac by USB.
If you get lost with so many versions do not worry: in a few days we can make a jump and think about the betas of iOS 11, macOS 10.13, watchOS 4 and tvOS 11.
Someone with bets for the name that will give the new macOS? I was catching a map of California and marking significant places.