README
Type
External
Status
Published
Created
Jun 13, 2026
Updated
Jul 6, 2026
Updated by
Dosu Bot
Source

Bluefin LTS#

Achillobator giganticus

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Larger, more lethal Bluefin. Built on CentOS Stream 10 for longer support windows, conservative upgrades, and production-focused workstations.

image

Latest Release#

Bluefin LTS latest release

Images#

Full catalog at docs.projectbluefin.io/images →

Bluefin LTS#

Long-term support Bluefin stream built on CentOS Stream 10.

# LTS — recommended
sudo bootc switch ghcr.io/projectbluefin/bluefin-lts:stable --enforce-container-sigpolicy
# LTS — NVIDIA
sudo bootc switch ghcr.io/projectbluefin/bluefin-lts-nvidia:stable --enforce-container-sigpolicy

Migrating from ublue-os/bluefin-lts#

Users on the previous ghcr.io/ublue-os/bluefin*:lts images will be migrated automatically via a systemd service shipped in the weekly build. No action required — your machine will switch on its next reboot after pulling the update.

Old image (ublue-os)New image (projectbluefin)
bluefin:ltsbluefin-lts:stable
bluefin:lts-hwe (legacy tag)bluefin-lts:stable
bluefin-dx:ltsbluefin-lts:stable + run ujust devmode after reboot
bluefin-dx:lts-hwe (legacy tag)bluefin-lts:stable + run ujust devmode after reboot
bluefin-gdx:ltsbluefin-lts-nvidia:stable + run ujust devmode after reboot
arm64 variantsNo automatic migration — reinstall from new image

To migrate manually before the automatic migration ships:

sudo bootc switch ghcr.io/projectbluefin/bluefin-lts:stable --enforce-container-sigpolicy

Getting Started#

Visit projectbluefin.io to download Bluefin LTS, or check the LTS Documentation for installation and upgrade instructions.

Rebasing between the Bluefin (Fedora) and Bluefin LTS (CentOS) image families is not supported. Plan migrations as fresh installs or supported upgrade paths.

Community#

Contributing#

See the Contributing Guide for how to get involved. All participants are expected to follow the Universal Blue Community Guidelines.

Report security vulnerabilities via SECURITY.md.

License#

Apache License 2.0 — see LICENSE.

Bluefin LTS incorporates CentOS Stream, GNOME, Universal Blue, and various CNCF projects, each under their respective licenses.