There are two ways to upgrade your template to a new Debian release:
- *Recommended*: [Install a fresh template to replace the existing one.](https://www.qubes-os.org/doc/templates/debian/#installing) *This option may be simpler for less experienced users.* After you install the new template, redo all desired template modifications and [switch everything that was set to the old template to the new template](https://www.qubes-os.org/doc/templates/#switching). You may want to write down the modifications you make to your templates so that you remember what to redo on each fresh install. In the old Debian template, see `/var/log/dpkg.log` and `/var/log/apt/history.log` for logs of package manager actions.
- *Advanced*: [Perform an in-place upgrade of an existing Debian template.](https://www.qubes-os.org/doc/templates/debian/in-place-upgrade/) This option will preserve any modifications you've made to the template, *but it may be more complicated for less experienced users.*
For a complete list of template releases that are supported for your specific Qubes release, see our [supported template releases]. Please note that no user action is required regarding the OS version in dom0 (see our [note on dom0 and EOL](https://www.qubes-os.org/doc/supported-releases/#note-on-dom0-and-eol)).