Learning AlmaLinux - AlmaLinux 10, Lifecycle & Roadmap

#Introduction

In the previous episode, Episode 20, we mastered cross-version migration with ELevate. Now we look ahead: AlmaLinux OS 10 — the newest major release that takes this system into its next era. As this series is written (August 2026), the latest version is AlmaLinux 10.2, released in May 2026.

This episode breaks down what's new in AlmaLinux 10, how its lifecycle works, and where this distro's roadmap is heading — important for deciding when and how to adopt the newest version.

#AlmaLinux OS 10: A New Generation

AlmaLinux 10 is based on RHEL 10 — a significant architectural leap from the 8/9 era.

#dnf5 as the Default

One of the most visible changes: dnf5 becomes the full default package manager. Everything we learned in episodes 4 and 5 — dnf5 install, dnf5 module, dnf5 history — is now the default experience without compromise.

dnf5 --version
cat /etc/os-release

#AppStream Modules

The AppStream module system we learned in episode 5 continues and matures: managing multiple versions of Python, Node.js, or PostgreSQL in one repository becomes smoother with improved tooling.

#The RHEL 10 Kernel Branch

The AlmaLinux 10 kernel comes from the RHEL 10 kernel branch — bringing the modern hardware support, performance improvements, and security that today's production systems need.

uname -r

#Multi-Architecture Support

AlmaLinux 10 is available for four main architectures:

We already touched on ARM64 in episode 19 — and this support is now consistent across all releases.

#Image Mode and Bootc

The most important direction of AlmaLinux 10: image mode. Instead of managing the system as a changing set of packages, image mode treats the entire operating system as an image — built, tested, and deployed like a container image.

• bootc is the tool that replaces traditional package-based upgrades with image-based ones.
• The system is run, upgraded, and rolled back as a single complete image unit.
• This pattern aligns OS deployment with the container workflow you already mastered in episode 18.

bootc status

#Lifecycle and Release Schedule

#10-Year Support

The lifecycle promise is one of the main reasons to choose AlmaLinux. For AlmaLinux 10:

During Full Support, new features and hardware continue to be added; during Maintenance, the system receives security updates and bug fixes without new features.

#Continuous Minor Releases

AlmaLinux 10 follows a regular minor release rhythm:

Each minor release bundles active security updates and tested fixes — another reason routine dnf5 upgrade is a non-negotiable habit.

#Status of Other Versions

• AlmaLinux 9.x — still actively supported (starting 9.8); migration to 10 is possible at any time via ELevate.
• AlmaLinux 8.x — in Maintenance Support until March 1, 2029.

cat /etc/almalinux-release

#Roadmap: Where Is AlmaLinux Heading?

From the releases and image mode, we can read the strategic direction:

• Image mode & bootc maturing — OS operations move from package-based to image-based, with more reliable rollback.
• Fully cloud-native — deeper integration with Kubernetes and UBC (Universal Base Container)-style technologies, where a container-first operating system becomes the main pattern.
• Container-first deployment — the installation patterns we learned in episodes 18 and 19 increasingly become the primary path, not an afterthought.

uname -r
dnf5 repolist

#Common Pitfalls

1. Assuming AlmaLinux 9 is "expired". No — 9 is still fully supported and receiving updates; the 9 vs 10 choice is about project lifetime, not status.
2. Ignoring minor releases. Security updates arrive through minor releases — routine dnf5 upgrade isn't optional.
3. Rushing into image mode. Image mode is the future, but package-based is still fully supported — choose according to your team's readiness.
4. Forgetting the EOL schedule. Check endoflife.date/almalinux periodically so you don't get left on an unsupported version.
5. Equating dnf5 on 9 and 10. On 9 it's an option, on 10 it's the default — make sure your scripts and tooling are compatible.

#Conclusion

In this episode 21 you've looked ahead with AlmaLinux: the RHEL 10-based AlmaLinux 10 features with dnf5 default, AppStream modules, the RHEL 10 kernel branch, and multi-architecture support, the image mode and bootc concept, the 10-year lifecycle map with Full Support until 2031, and the roadmap toward a cloud-native and container-first ecosystem.

Key takeaways:

• AlmaLinux 10.2 (May 2026) is the latest release, based on RHEL 10, with dnf5 as default.
• Support: Full Support until May 31, 2031, Maintenance until May 31, 2035.
• Regular minor releases: 10.0, 10.1, 10.2, 10.3 — each carrying active security updates.
• Image mode + bootc directs OS operations toward the complete image model.
• Roadmap toward cloud-native: Kubernetes, UBC, and container-first deployment.
• Check version status regularly at endoflife.date/almalinux.

With an understanding of the distro's direction, we arrive at the final round. In the next episode, Episode 22 — the closing episode of this series — we'll cover Ecosystem, Alternatives & Final Reflections: comparing AlmaLinux with Rocky, Oracle, CentOS Stream, RHEL, and Fedora, when to choose which, a recap of all 23 episodes, and a complete production checklist. See you in the final episode!