And it is that Apple itself warned in the past June 5 keynote that the public beta versions would arrive this June, so if nothing goes wrong this week is the last in which they can launch the beta since we enter the month of July next Saturday.
In reality they do not usually fail in this sense and it is more than likely that if not this afternoon, throughout this very week all the first pubic versions arrive previously released for developers. In this case, what we have for sure is the word of Apple and few times they have scheduled a date and then they have not complied, we have specific cases that have touched the limit such as Apple Pay in Spain that was announced for 2016 and arrived just, but they comply.
What we also have very clear is that the beta versions released for developers are not 100% polished and they continue to work on them, so it is normal that they are delayed until the last moment to launch the public versions. Without a doubt once they are put, they will launch all the available versions: macOS High Sierra, iOS 11, watchOS 4 and tvOS 11, so be attentive that there is not too much missing.
The direct link to the web page where the beta versions are hosted when they are released is available from right here in case someone is not signed up to the program and wants to do it before the launch of what will be the first public beta version of the new macOS High Sierra, yes, it is advisable to stay on the sidelines if we only have one device or we do not want to make a partition our Mac disk, remember that they are beta versions and These can have faults that harm our work.