CentOS Stream
What CentOS Stream Is
CentOS Stream is a continuously updated Linux distribution that sits between the Fedora project and Red Hat Enterprise Linux (RHEL). It acts as a preview of the next RHEL minor release, and its packages change continuously rather than in fixed releases.
Changes typically pass through upstream projects and Fedora before they enter CentOS Stream, and RHEL is then built from the same source. Because the stream runs one step ahead of RHEL, it reveals problems and changes before they reach paying customers.
The project is maintained by the CentOS community, with Red Hat taking part in its development. It is aimed mainly at developers, testers and contributors who want to work on the code that will become RHEL.
Why CentOS Linux Changed
CentOS Linux was for many years a free rebuild of RHEL's source code. Because it followed RHEL closely, administrators could run the same software at no license cost. Hosting companies, small businesses and research groups relied on it widely.
Red Hat then changed direction. It ended the CentOS Linux line earlier than many users had planned and replaced it with CentOS Stream. The new model meant CentOS would no longer be a stable copy of RHEL, because Stream receives changes before RHEL does. For users who depended on a fixed, identical base, this was a significant shift.
Why Most Production Servers Moved Away From Stream
CentOS Stream is not designed as a stable base for most production sites, because its packages change frequently and can introduce changes that affect existing software. Many hosting providers and businesses therefore moved to RHEL itself or to community rebuilds that aim for binary compatibility with it.
Those rebuilds are the main alternatives. Two of them, AlmaLinux and Rocky Linux, are compared in AlmaLinux vs Rocky Linux. For the wider question of what happens when an operating system stops receiving support, read what end of life means for servers.
Frequently asked questions
Is CentOS Stream the same as CentOS Linux?
No. CentOS Linux was a stable rebuild of RHEL. CentOS Stream is a continuously updated upstream preview of RHEL. Both carry the CentOS name, but they have different goals, update patterns and support expectations.
Can CentOS Stream run production websites?
It can run workloads, but it is designed mainly for developers and testers. Because its packages change frequently, updates may bring changes that a production site did not expect. Teams that need a stable base usually choose RHEL or a RHEL-compatible distribution instead.