If you want to be able to upgrade to a Plesk version other than the latest stable release, you can upgrade using the interactive console. To begin, connect to the server via SSH and run the following commands:

1. wget https://autoinstall.plesk.com/plesk-installer
2. chmod +x plesk-installer
3. ./plesk-installer

This will launch the console in the shell. If you want to upgrade to the latest preview of the upcoming release, run the installer with the --tier testing option:

./plesk-installer --tier testing

If you want to change the directory to which the installer will download files (./parallels by default), run the installer with the --target <path to the desired directory> option:

./plesk-installer --target /tmp/plesk_download

By default, they are downloaded from Plesk servers. However, you may want to install from a different server (for example, if you have set up a local mirror), or from the local disk (if you have downloaded the installation files beforehand). To install from a different source, run the installer with the --source <URL or local path> option:

./plesk-installer --source http://local.example.com/plesk_download
./plesk-installer --source /tmp/plesk_download

If you are upgrading Plesk on a server behind an HTTP proxy, you can configure the proxy server address by adding the --proxy-host <IP address or hostname> and --proxy-port <port> options. If authentication is required, you can set the username and password via the --proxy-user <username> and --proxy-password <password> options:

./plesk-installer --proxy-host http://proxy.example.com --proxy-port 8080 --proxy-user john_doe --proxy-password MySecurePass#123

If you prefer to use a graphical interface during the upgrade, see the Upgrading Plesk for Linux Using Installer GUI topic.

Read the text marked with “IMPORTANT”, then type the character F and press the Enter key to proceed.

Next, you need to select to which version of Plesk you want to upgrade. Here you are about to upgrade to the latest Plesk release.

If you ran the installer with the --tier testing option, you will also be able to select the latest preview of the upcoming Plesk release.

Type F and press Enter to continue. Plesk installer will download the installation files for the selected Plesk version and prompt you for confirmation.

Type F and press the Enter key to begin the upgrade.