Beta release day!
Apple just put it in the hands of developers the second beta version of macOS Sierra 10.12.6 and in it the typical bug fixes and solutions to the small bugs of the previous beta version are added. In this case, as in the beta 1 of macOS Sierra 10.12.6, there are no important changes in the operation or new features, so it is a question of correcting the possible problems reported in the previous version and adding versions to an operating system that is coming to an end.
At WWDC developers usually have access to the first beta versions of the next version of the OS, in this case we are facing beta 2 and these versions may not go much further. In this case Apple in addition to the Mac developer version has released versions for iOS, tvOS and watchOS, that is, all beta 2 versions. Now it remains to be seen if in the next few hours it will also release the versions for users who are enrolled in the public beta program, but for the moment there is nothing.
As always, it is better to stay out of these beta versions if you are not a developer, since we could have some incompatibility problem with the applications or work tools that we use on the computer. The beta versions released are usually stable and with few bugs that affect functionality but we must not forget that they are beta versions and it is better to be cautious with them.