An in-place upgrade is a process that occurs within a single server environment, allowing for the seamless transition from an older version of software to a newer one without the need for reinstallation or extensive system changes. To successfully carry out an in-place upgrade, certain prerequisites must be met:
The operating system must be supported both by its vendor and by Plesk. This ensures compatibility and continued support throughout the upgrade process.
The currently installed version of Plesk must be eligible for an upgrade to Plesk Obsidian. This eligibility is crucial for a successful upgrade. The versions that are supported for this upgrade include:
- Plesk Onyx 17.0
- Plesk Onyx 17.5
- Plesk Onyx 17.8
If all requirements are satisfied and confirmed, you can proceed with the upgrade using the method outlined in this article. This article provides a detailed guide to ensure that the upgrade process goes smoothly. If, however, an earlier version of Plesk is installed, you have two options: you can either upgrade to Plesk Onyx first, or alternatively, you can perform an upgrade by transfer, which involves migrating to a new server environment.