Article ID: 111349, created on May 31, 2011, last review on Aug 23, 2016

  • Applies to:
  • Web Presence Builder 12.0
  • Plesk
  • Plesk Sitebuilder


Information about the Plesk End of Life Policy can be found here: Plesk Lifecycle Policy. The instructions below will help you keep the product up-to-date.

Keep you product up to date

There are two ways of switching to the latest release of Plesk:

1. Upgrade your current server

It is always recommended that you upgrade to the most stable version of the product. The latest available stable version can be found by executing the following command on your current Plesk server:


     /usr/local/psa/admin/bin/autoinstaller --show-releases


     "%plesk_bin%\ai.exe" --show-releases

Additionally you can locate the latest Plesk version at the official Plesk website.

2. Transfer to a new server with the latest Plesk

If you need instructions for migration to the latest Plesk version, please check out our migration process guide (.PDF)

If you prefer to migrate on your own but need consulting assistance Plesk offers free migration assistance from older versions.

If you prefer to let Plesk professionals handle the migration (or in-place upgrade) job and verification checks for you Plesk provides paid migration service

Upgrade tips

Here are the tips that may help you with the upgrade process:

Search Words

Plesk or Dr.Web license has expired


Plesk control panel and sites not working

ERROR: PleskFatalException.

Failed to connect connection refused

Error: There is no IP address in the pool.



control panel reinstall plesk 8

End of Life

Plesk server not available

plesk on preventative maintenance

plesk not laoding


won't start

Plesk EOL

database inconsistancy

IMAP connect from

security problem

plesk upgrade error

get_config_string failed: PRODUCT_DATA_D: Unexpected end of data when read C-string from serializer.

plesk does not work

Failed to create COM object `ADODB.Connection': Not enough storage is available to process this command.

failed: Unable to logon user

Plesk Licence not updating within Plesk


Plesk is not supported

Fatal error: Call to undefined function of_get_key_by_product() in D:\Program Files\Parallels\Plesk\admin\plib\common_func

safe_mode not working

Can not log on locally to C:\Program Files (x86)\Parallels\Plesk\admin\htdocs as user psaadm with virtual directory password

Terminate him!

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