Fedora 25 reached EOL (end-of-life) on 2017-12-12. We sincerely apologize for our failure to provide timely notice of this event. It is strongly recommend that all Qubes users upgrade their Fedora 25 TemplateVMs and StandaloneVMs to Fedora 26 immediately. We provide step-by-step upgrade instructions for upgrading your existing TemplateVMs and StandaloneVMs in-place on both Qubes 3.2 and Qubes 4.0. For a complete list of TemplateVM versions supported for your specific version of Qubes, see Supported TemplateVM Versions.
We also provide fresh Fedora 26 TemplateVM packages through the official Qubes repositories, which you can get with the following commands (in dom0).
Standard Fedora 26 TemplateVM:
$ sudo qubes-dom0-update qubes-template-fedora-26
Minimal Fedora 26 TemplateVM:
$ sudo qubes-dom0-update qubes-template-fedora-26-minimal
Afterward, you must update the template with the following command (in the template):
$ sudo dnf update --best --allowerasing
After upgrading to a Fedora 26 TemplateVM, please remember to set all qubes that were using the old template to use the new one. The instructions to do this can be found in the upgrade instructions for your specific version.
Please note that no user action is required regarding the OS version in dom0. If you’re using Qubes 3.2 or 4.0, there is no dom0 OS upgrade available, since none is currently required. For details, please see our Note on dom0 and EOL.
If you’re using an older version of Qubes than 3.2, we strongly recommend that you upgrade to 3.2, as older versions are no longer supported.