====== Upgrade Ortro ======
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Upgrading from version x to version y is simple as overwriting the old Ortro installation directory with the new one. \\
Just remember to check ownership and permission especially for the configuration directory (i.e. conf). 

  # chmod 700 $ORTRO_HOME/conf

When the upgrade require to alter the database structure, you will find a folder with the relative scripts, enter in the folder and exec the upgrade.php script:

  # cd $ORTRO_HOME/upgrade
  # php upgrade.php