Made possible because Red Hat has a policy that all they write must be Open Source, including build process, integration, debugging methods, etc. So...

• Made possible because Red Hat has a policy that all they write must be Open Source, including build process, integration, debugging methods, etc. So...

• ...to be Open Source means to be reproducible

• Available on all platforms (ia32, x86_64, ia64, s390x, ppc)

• Binary RHEL-ready hw drivers are technically CentOS-ready too

• ISV sw for RHEL behaves exactly the same on CentOS

• Coherent version numbers CentOS 3.2 equals to RHEL 3 update 2