According to the Fedora Wiki, Fedora Onyx is being considered for acceptance. This spin makes use of the same foundation technology found in other immutable versions – such as Fedora Silverblue, Fedora Kinoite, and Fedora Sericea – and is built for those who are looking for the immutability and atomic features that rpm-ostree provides.
Fedora Onyx will use the Budgie desktop environment and, according to the Wiki, has a target release of Fedora Linux 39.
For those who don’t know, an immutable operating system is one that ensures the core of the OS cannot be changed and are typically used for testing and container-based software development. Immutable operating systems focus on security and tend to be future-proof.
Although there is no guarantee Fedora Onyx will be accepted as an official spin, it looks fairly likely. As to the benefits of Fedora Onyx, the editor-in-chief of the Fedora Community Blog, Ben Cotton, has this to say: “Fedora Onyx will expand Fedora’s existing attractive offerings of immutable operating systems, providing an on-ramp for potential users to the Fedora platform, as well as a desired experience among current Fedora Budgie Spin users that wish to experiment with rpm-ostree or dive into tooling that pairs well with the immutable experience.”