- Plesk 10.x for Linux
- Plesk 11.x for Windows
How to downgrade Parallels Plesk Panel?
Parallels Plesk Panel does not support downgrading by installing the version you had before over the existing version.
If you upgrade for evaluation purposes and want to have the option to roll back to your previous version, you should create a full server backup before upgrade using Parallels Plesk Backup utility or create server snapshot using 3rd-party backup tools.
To roll back to the previous version, perform a clean installation of the Parallels Plesk Panel you owned and restore the full server backup or restore server snapshot made by 3rd-party backup tool.