Suppress Prestashop 1.5.x update message in admin panel
In order to suppress update message in admin panel of prestashop 1.5.x you have to edit file \override\classes\Upgrader.php like this
class Upgrader extends UpgraderCore
{
public function checkPSVersion($force = false){
return false;
}
}
Now there will be no more upgrade prompts in admin panel.
p.s. It is a bad habbit to keep your software outdated