Hi Haic,
Please check the contents of includes/version.php
What are the values of $RELEASE and $DEV_LEVEL?
This is the answer
var $RELEASE = '2006';
/** @var string Development Status */
var $DEV_STATUS = 'Stable';
/** @var int Sub Release Level */
var $DEV_LEVEL = '3';
/** @var string Revision */
var $DEV_REVISION = '1060';