How AlmaLinux's Community Supported RHEL Binary Compatibility

Linux magazine interviewed an AlmaLinux official about what happened after their distro pivoted to binary compatibility with Red Hat Enterprise Linux rather than being a downstream build: Linux Magazine: What prompted AlmaLinux to choose ABI over 1:1 compatibility with RHEL? benny Vasquez, chair of the AlmaLinux OS Foundation: The short answer is our users. Overwhelmingly, our users made it clear that they chose AlmaLinux for its ease of use, the security and stability that it provides, and the backing of a diverse group of sponsors. All of that together meant that we didn't need to lock ourselves into copying RHEL, and we could continue to provide what our users needed. Moreover, we needed to consider what our sponsors would be able to help us provide, and how we could best serve the downstream projects that now rely on AlmaLinux. The rippling effects of any decision that we make are beyond measure at this point, so we consider all aspects of our impact and then move forward with confidence and intention. LM: How did AlmaLinux's mission of improving the Linux ecosystem for everyone influence this decision? bV: We strongly believe that the soul of open source means working together, providing value where there is a gap, and helping each other solve problems. If we participate in an emotional reaction to a business's change, we will then be distracted and potentially hurt users and the Enterprise Linux ecosystem overall. By remaining focused on what is best (though not easiest), and adapting to the ecosystem as it is today, we will provide a better and more stable operating system. LM: What opportunities does the ABI route offer over 1:1 compatibility? bV: By liberating ourselves from the 1:1 promise, we have been able to do a few small things that have proven to be a good testing ground for what will come in the future. Specifically, we shipped a couple of smallish, but extremely important, security patches ahead of Red Hat, offering quicker security to the users of AlmaLinux... This also opens the door for other features and improvements that we could add back in or change, as our users need. We have already seen greater community involvement, especially around these ideas. LM: Does the ABI route pose any extra challenges? bV: The obvious one is that building from CentOS Stream sources takes more effort, but I think the more important challenge (and the one that will only be solved with consistency over time) is the one of proving that we will be able to deliver on the promise...We will continue on our goal of becoming the home for all users that need Enterprise Linux for free, but in the next year I expect that we will see an expansion in the number of kernels we support and see some new and exciting SIGs spun up around other features or use cases, as the community continues to standardize on how to achieve their goals collectively. Linux magazine notes that in August AlmaLinux added two new repositories, Testing and Synergy. "Testing, currently available for AlmaLinux 8 and 9, offers security updates before they are approved and implemented upstream. Synergy contains packages requested by community members that currently aren't available in RHEL or Extra Packages for Enterprise Linux (EPEL, a set of extra software packages maintained by the Fedora SIG that are not available in RHEL or CentOS Stream)." The article also points out that "On the upside, AlmaLinux can now include comments in their patches for greater transparency. Users will see where the patch comes from, which was not an option before." Vasquez tells the magazine, "I think folks will be seriously happy about what they find as we release the new versions, namely, the consistency, stability, and security that they've come to expect from us."

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