Happily using Vyrso 5.2.1 on an Android 6.0.1 device until I downloaded an update to BKC, which gave an error when selecting it to read. The same occurred a couple of weeks ago with Vyrso 4.6.0 on an Android 4.1.2 device, but I couldn't update Vyrso nor the version of Android! So I downloaded commentaries until one could be read.
There should be a check to ensure that incompatible resources are not downloaded.
Note that I use Vyrso only as a Reader so am not fussed about updating.