[CentOS] Update path question in connection with CentOS Stream?

Thu Dec 10 15:33:15 UTC 2020
Walter H. <Walter.H at mathemainzel.info>

Hello,

when someone has installed a CentOS 7.1 in the past,

and did 'yum update' regularily, his/she got a CentOS 7.8 now without 
any reinstallation procedure or other complications;

when the same wanted to update to CentOS 8 he/she had to do a new install;

what happens to CentOS Stream?

when some is now installing CentOS Steam and will do

'dnf update' or 'yum update' regularily in the future,

what does he/she get till the "end"?

is this a rolling release like Win10 which doesn't need to be 
reinstalled now and in future?
(the fact that hardware can break is not the question)

Thanks,
Walter