Why Not Use CentOS Stream and Why AlmaLinux, Rocky Linux, or Oracle Linux Are Better Choices
CentOS was once a popular operating system in enterprise environments due to its stability and high compatibility with Red Hat Enterprise Linux (RHEL). However, since Red Hat shifted CentOS to CentOS Stream, many users have transitioned to alternatives like AlmaLinux, Rocky Linux, or Oracle Linux. Here’s why you should consider doing the same.

Differences Between CentOS Stream and Traditional CentOS
CentOS used to be a free version of RHEL, providing high stability with thoroughly tested updates from Red Hat. Now, CentOS Stream:

A rolling-release distribution:
CentOS Stream is positioned ahead of RHEL in development, meaning updates may be less stable.
This can lead to unpredictable bugs, especially for systems requiring high reliability.

No longer a direct RHEL clone:
CentOS Stream has lost complete compatibility with RHEL.
Installing a web server manually or using automated scripts like VPSSIM can result in frequent errors due to beta applications being updated without notice, making the installation code outdated if not regularly tested and updated for compatibility.

As a result, CentOS Stream is unsuitable for systems demanding high stability and security. For webmasters, a stable server is far more critical than using the latest or beta versions of server applications.

Advantages of AlmaLinux, Rocky Linux, and Oracle Linux
a. AlmaLinux
Community-driven, non-profit project:
Managed by the AlmaLinux OS Foundation, a non-profit organization that benefits the community.
Complete RHEL clone:
AlmaLinux maintains 1:1 stability and compatibility with RHEL.
Long-term support:
It offers long-term updates and support similar to RHEL.
Completely free:
No fees are required to use or access updates.
b. Rocky Linux
Founded by the original CentOS creator:
Developed by Gregory Kurtzer, the founder of CentOS, to replace it after the shift to CentOS Stream.
1:1 compatibility with RHEL:
Provides reliability and stability for mission-critical systems.
Strong community support:
Backed by a large, active community, making it ideal for organizations needing a robust operating system.
c. Oracle Linux
Enterprise-focused:
Fully compatible with RHEL, supported by Oracle.
Enhanced kernel option (Unbreakable Enterprise Kernel – UEK):
Offers better performance and security in many scenarios.
Free to use with optional enterprise support:
Oracle Linux provides free updates, with paid options for technical support.
Disadvantages of CentOS Stream for Critical Systems
Lack of stability:
Updates in CentOS Stream are often less thoroughly tested, increasing the risk of system issues.
Unsuitable for enterprise use:
Businesses require reliable operating systems for running databases, web servers, and infrastructure services, which CentOS Stream cannot guarantee.
No long-term support:
CentOS Stream lacks the long-term support commitment of RHEL or its clones.
Conclusion
If you need a free, stable, and fully RHEL-compatible OS to replace CentOS, AlmaLinux, Rocky Linux, or Oracle Linux are superior choices. All three offer high stability, long-term support, and are suitable for both enterprise environments and critical systems.

Meanwhile, CentOS Stream is best suited for testing or development purposes, not for organizations requiring a dependable operating system.

Choose the right OS based on your specific needs to ensure the safety and efficiency of your systems.