AlmaLinux vs Rocky Linux 2026: Which Should You Choose?

Since CentOS shifted to a rolling-release model in 2020, AlmaLinux and Rocky Linux have become the two default choices for anyone running a stable, RHEL-compatible server — particularly for cPanel and DirectAdmin, which require a traditional enterprise Linux base. Both are free, both are binary-compatible with Red Hat Enterprise Linux, and on paper they look nearly identical. Here is what actually separates them.

Where they came from

Rocky Linux was founded by Gregory Kurtzer, one of the original creators of CentOS, specifically in response to CentOS's shift away from being a stable downstream rebuild of RHEL. AlmaLinux was created by CloudLinux, the same company behind the CloudLinux OS product used heavily in shared hosting, initially funded directly by CloudLinux before transitioning to an independent non-profit foundation. Both projects share the same underlying goal — a free, stable, 1:1 binary-compatible rebuild of RHEL — but they differ in governance and who funds ongoing development.

Technical differences: closer than most people expect

	AlmaLinux	Rocky Linux
RHEL compatibility	1:1 binary compatible	1:1 binary compatible
Governance	AlmaLinux OS Foundation (member-governed)	Rocky Enterprise Software Foundation (RESF)
Primary backer	Originally CloudLinux, now foundation-run	CIQ (founded by Rocky's creator) plus community
cPanel support	Officially supported	Officially supported
DirectAdmin support	Officially supported	Officially supported
Update cadence	Very close to RHEL's own release timing	Very close to RHEL's own release timing

For the vast majority of hosting use cases, the practical day-to-day experience is nearly identical: same package manager, same systemd behaviour, same compatibility with cPanel, WHM, DirectAdmin, and the standard LEMP/LAMP stack tooling.

What actually might tip the decision

• Existing CloudLinux servers: if you already run CloudLinux (which is itself based on the same lineage as AlmaLinux), migrating between CloudLinux and AlmaLinux tends to be a smoother, better-tested path than crossing to Rocky.
• Community and support preference: some administrators prefer Rocky's foundation structure, seeing it as more clearly independent of any single commercial backer; others are comfortable with AlmaLinux's foundation model and CloudLinux's hosting-industry track record.
• What your panel vendor tests most: cPanel and DirectAdmin both officially support and test against both distributions, so this is rarely a deciding factor in 2026, but it is worth checking your specific control panel's current supported-OS list before committing on a production server.
• Migration tooling: both distributions provide official migration scripts to convert an existing CentOS, RHEL, or in some cases Oracle Linux installation in place, without a fresh reinstall, and both tools are actively maintained.

Migrating a cPanel server: the realistic process

Whichever target you choose, migrating a production cPanel server from an older CentOS install follows the same general shape:

1. Take a full backup of all cPanel accounts and configuration before touching anything.
2. Either run the official in-place conversion script (ELevate, used by both AlmaLinux and Rocky) on a test server first, or provision a fresh server on the target OS and migrate accounts across using WHM's transfer tool.
3. Verify cPanel, WHM, and all installed add-ons (CloudLinux, Imunify360, JetBackup, LiteSpeed) are compatible with the target OS version before migrating production traffic.
4. Keep the old server running until every migrated account has been fully verified — email, DNS, SSL, and any custom cron jobs.

Frequently asked questions

Is AlmaLinux or Rocky Linux more stable?

Both are built to the same 1:1 RHEL-compatibility standard and receive updates on a similar timeline, so in practice there is no meaningful stability difference for hosting workloads.

Can I convert an existing CentOS 7 or 8 server in place instead of reinstalling?

Yes, both AlmaLinux and Rocky Linux support the ELevate in-place conversion tool for eligible CentOS and RHEL-family installs, though a fresh install is generally the safer, more thoroughly tested path for a production cPanel server.

Does CloudLinux OS relate to AlmaLinux?

CloudLinux OS is a separate, paid product built by the same company that originally funded AlmaLinux, and shares lineage with it, but AlmaLinux itself remains free and independently governed.

Conclusion

For nearly all hosting purposes, AlmaLinux and Rocky Linux are functionally interchangeable — both are free, both are fully RHEL-compatible, and both are officially supported by cPanel and DirectAdmin. If you already run CloudLinux, AlmaLinux's shared lineage makes for a slightly smoother path; otherwise, the decision often comes down to which foundation's governance model you trust more, rather than any real technical gap.