Ok, now (yesterday) 3.8.0 was marked as stable and the related issue was closed.
So my phone (still configured to stable channel) started downloading:
It is possible to show the Changelog by clicking on the Downloading notification
My system update settings are:
This morning it looks like this:
So it already installed the new version. Is this a problem, when the order is not 100% the same?
I mean you ( @hirnsushi ) described that Magisk should be uninstalled beforehand.
Or can I still do it now (still before reboot) and directly reinstall it to Inactive Slot?
Also is there a way to control this a bit more? Like download but not directly install?