Fedora Silverblue Documentation

Fedora Silverblue is an immutable desktop operating system. Aiming at good support for container-focused workflows, this variant of Fedora Workstation targets developer communities.

The use of rpm-ostree for the core OS brings fully atomic upgrades, easy rollbacks and workflows that are familiar from OSTree-based servers. An OS image that is composed on the server side allows for testing the exact bits before they reach client systems, leading to more reliable updates.

rpm-ostree is a hybrid image/package system. It supports package layering, which allows to install RPMs for "OS extensions" such as printer drivers, fonts, and utilities like powerline or ykclient.

Moving desktop applications into Flatpak brings stronger isolation, and solves longstanding issues with using yum/dnf for desktop applications, such as the fact that upgrading deletes the files underneath the running application and often breaks it. Flatpaks can be safely updated without reboot.