Upgrade by transfer
- Upgrade by transfer is a process of switching to the latest Plesk version by moving all hosting data and settings from a current Plesk server to a server with the latest version of Plesk installed. This strategy is preferred when upgrading servers with an OS that either falls under the end-of-life policy or is approaching the support termination date. Upgrade by transfer also allows minimizing downtime of services on the production server, as websites stay online while the transfer is in progress.
- The migration procedure is described in our documentation: Migration Guide
Also, you may chek out the following articles about migration best practices:
Dist-upgrade for Linux
For the operating systems with the stable in-place upgrade procedure, we support such scenario as well.
WARNING: Dist-upgrade is supported since Plesk 12.5 and using the following scenarios:
Debian 6 to Debian 7
Debian 7 to Debian 8
Ubuntu 12.04 to Ubuntu 14.04
- Ubuntu 14.04 to 16.04
If Plesk is running on a Linux distribution that is not Debian 6 or 7, or Ubuntu 12.04, 14.04, do not attempt to upgrade the operating system. Such upgrade paths are not supported by Plesk, and attempting to upgrade will damage your Plesk installation. Also, dist-upgrade on systems with older Plesk versions will damage Plesk installation.
Additional information about dist-upgrade on Plesk 12.5, Onyx can be found here: