I have been reading a lot about the new CentOS stream "revolution", but now I am trying to understand the dilemma most of "regular" sysadmin have: What should I do? As you know there are a lot of computational centers working with CentOS. Sometimes because it is the best OS sysadmin knows, sometimes because of a low budget problem. Now we have this important change, so we have to decide. We have to choose the OS we are going to install in our servers, moreover we have to decide as quickly as we can, because as you know changes should be done as calm as posible. Could we list pros/cons about using CentOS stream in a computational Center? Are we going to see CentOS stream in the top500 list? Best regards, Pablo Sanz -- Pablo Sanz Mercado Director Técnico Centro de Computación Científica Universidad Autónoma de Madrid