At the moment only developers registered in the Apple Developer Center will be able to access the versions in question – possibly within a few days the apple will make the same versions available to Beta Software Program participants.
Testing of upcoming versions of the apple systems began on December 17 last year, taking a break from the end of the year festivities and resuming on January 14, when the second batch of betas for the systems was released.
In terms of comparison, the current versions took four test cycles to be released for everyone, so, since this wave is in the third cycle, the arrival of the stable versions should occur very soon (at best, by the end of January) ).
Unfortunately, until then, changelogs have not been made available to let us know exactly what is new in the upcoming versions, in addition to what was already expected (bug fixes, improvements in the user experience, etc.).
Everything indicates that they are versions only focused on improvements, possibly not bringing any novelty in terms of features.
Recommended: Activate to protect yourself! Facebook novelty brings more privacy to photos on social network
As always, we advise you not to install beta versions on your primary device, seeing that they may be incompatible with apps and services, in addition, of course, to the expected bugs.