AerynOS Delivers December Updates With New Alpha ISO

AerynOS closes 2025 with major package upgrades, infrastructure improvements, and a refreshed 2025.12 Alpha ISO.

AerynOS, an atomic-update-based (not to be confused with immutability) still-in-development Linux distro currently in alpha, has shared its latest project update for December 2025.

The distro released its latest Alpha ISO, version 2025.12. This GNOME-based live environment includes Linux kernel 6.17.10 and uses the Lichen installer, which still requires a network connection to fetch pkgsets during installation.

The update brings COSMIC Beta9, GNOME 49.2, KDE Plasma 6.5.4, KDE Frameworks 6.20, and KDE Gear 25.08.2, alongside updates to core tools such as the Bash shell, Mesa with Vulkan anti-lag, LLVM, Buildah, Docker, OpenVPN, SCX schedulers, Vim, Wine, Zed, and more.

AerynOS 2025.12

COSMIC’s packaging pipeline has been further automated, allowing quicker turnaround on System76’s many Beta-phase tags. The team also resolved several usability issues, including missing USB auto-mounting in COSMIC due to absent gvfs components and sudo-rs behaviour in terminal environments.

Apart from that, a new auto-pruning mechanism has landed in the Vessel repository manager—the backend service responsible for storing, indexing, and serving all built packages that make up the distribution. The system now reviews stored packages daily and removes those no longer reachable through repository indexes, preventing accidental storage overrun and reducing maintenance overhead.

Additionally, according to devs, much of the recent work focused on the infrastructure side. In light of this, AerynOS migrated its servers to Netcup, improving performance and delivering notably faster download speeds for European users.

A new auto-pruning mechanism has also landed in the Vessel repository manager. The system now reviews stored packages daily and removes those no longer reachable through repository indexes, preventing accidental storage overrun and reducing maintenance overhead.

Looking ahead, the devs plan to complete the Versioned Repositories feature, along with its Moss system-model companion. This will let AerynOS introduce breaking repository or on-disk format changes without requiring user intervention. Once deployed, systems will be able to migrate seamlessly during routine sudo moss sync -u operations.

If you want to give the distro a try, keep in mind that AerynOS doesn’t include a graphical installer. Instead, the installation takes place entirely in the terminal using its Rust-written, in-house Lichen installer (currently heavily under development).

For more information, see the report on AerynOS’ blog.

Image credits: AerynOS

Bobby Borisov

Bobby Borisov

Bobby, an editor-in-chief at Linuxiac, is a Linux professional with over 20 years of experience. With a strong focus on Linux and open-source software, he has worked as a Senior Linux System Administrator, Software Developer, and DevOps Engineer for small and large multinational companies.

6 Comments

  1. paulo

    Let’s be honest: it has long been known that ‘men will no longer be men and will compile their own device drivers.’ I am extremely skeptical of distros with small teams. They have a short lifespan and then die, leaving many users orphaned. I believe that, without a strong company or foundation providing financial support, it will be very difficult for distros like this to gain relevance. Developers need to live off their work, and there is no global, bureaucratic-free funding method.

    As for Ikey Doherty no longer being part of the project, don’t be surprised by the distro. ‘The habit of smoking a pipe leaves the mouth crooked.

  2. NomadicCore

    It’s a known issue that AerynOS doesn’t work with Ventoy.

    I appreciate the appeal of using Ventoy, but for now, other image writing tools like Etcher or using dd is recommend.

    It’s also worth noting that we are currently only offering nvidia support on a best efforts basis (at this moment in time). That will change eventually.

    We are having to limit our scope whilst we are in Alpha status as a conscious decision so we can focus on developing our core tooling and infrastructure. The idea is that eventually we will have an overall better distribution for everyone.

  3. VIM

    I download previous version, and doesn’t works on my pc, when i wanted to boot in live mode with ventoy, at the end of process locked and freezed, even with kvm stops at that moment.

    I don’t know about of this version, but the previous version was a bad iso.

    My system on test: core i7, 16 gb ram and nvidia graphic.

  4. paulo

    Who takes seriously a Linux distribution created by Ikey Doherty?

    1. Bobby Borisov

      In fact, he hasn’t been part of the team for quite some time.
      https://linuxiac.com/ikey-doherty-missing-from-aerynos-for-six-months/

    2. Kevin

      Possibly anyone that may have had concerns and sees that the project appears to be doing OK without him. That, and those who don’t care or didn’t know who is is to begin with.

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