Symptoms

How to know Wordpress version that installed on domain?

Resolution

There are several ways:

  1. The simplest way is check in Plesk Control panel->domains->domain.com->Applications->Manage My Applications->application->About.

  2. Also version is saved in version.php file in Wordpress directory:

    #  grep -ir wp_version /var/www/vhosts/domain.tld/httpdocs/wordpress/wp-includes/version.php
$wp_version = '3.9.1';

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