This thread has now been closed to direct all further updates about this release onto the latest announcement:
Release Blog post: https://releases.xamarin.com/beta-cycle-7/
This is a feature release. A few of the early preview features are:
See the Release Blog post and the individual per-product release notes for some of the documented known issues.
Please file a bug for any new issue you find in these Cycle 7 versions that you would like the Xamarin team to investigate. Note that Beta versions have not yet completed the full suite of tests by the Xamarin QA team. That said, customer bug reports are still much appreciated, even if the problem would eventually be caught by the remaining QA tests.
You can install this new Beta version or switch back to the current Stable version by changing updater channels.
Release Blog post including estimated timeline to Stable: https://releases.xamarin.com/beta-cycle-7/