While we continue to wait for the first public beta version of macOS High Sierra, Apple continues to work with the beta versions for developers of the current Mac operating system.
In this case we have on the table the macOS Sierra 5 beta number 10.12.6 and in it you can read, as in the previous beta versions released, the typical bug fixes and solutions to the problems found. It is about leaving the current operating system as refined as possible to make the final leap to the new version of macOS High Sierra.
For now, it does not seem that we have too many changes compared to the current version for developers beyond the corrections, but if news appears we will share them with you as soon as possible in this article. Apple still has many fronts open with beta versions, but actually it keeps them all pretty up to date except the "blissful" macOS High Sierra public beta they don't want to release.
It is possible that in the next few hours it will be published and everyone can test the performance news that is implemented in it, but as always it is good to remember that we are facing beta versions and therefore we advise against its installation on Macs for several reasons. The main one is that it may contain bugs that prevent us from working normally with our Mac, as well as possible incompatibilities with some applications or tools that we use for work. In addition, the news are not so outstanding so it is best to wait a little for the official versions to be released and then yes, install them.