https://blog.mageia.org/en/2019/06/02/m ... r-testing/
and I suppose my linux box should have been updated to kernel kernel 5.1.5 while I stuck with 5.1.3.
I read the other answers like this:
When 7.0 is released, will it be possible to upgrade the installed RCs to the released version by simply installing package updates?
short answer = yes.
long answer => be sure that your on-line media is set up to "7" not "cauldron", they should be anyway.
and I have 5.1.3-desktop-4.mga7 x86_64. So I hope to belong to stable group and not couldron group.
Question: why I'm not receive updates any more?