Fermilab, which develops the Scientific Linux distribution,
Instead of maintaining their own distribution, Fermilab intends to partner with CERN and other scientific organizations to improve CentOS and turn it into a better platform for computing systems used in high-energy physics experiments. The transition to CentOS will make it possible to unify the computing platform for scientific applications, which will simplify the organization of work in existing and future joint international projects covering various laboratories and institutes.
Resources freed up by delegating distribution and infrastructure maintenance to the CentOS project can be used to improve components specific to scientific applications. Switching from Scientific Linux to CentOS shouldn't be a problem, since as part of the preparation of the Scientific Linux 6 branch, scientific-specific applications and additional drivers were moved to external repositories
Maintenance of existing Scientific Linux 6.x and 7.x branches will continue without change, in sync with the regular
Source: opennet.ru