This is documentation about a configuration directive, which can be placed within Movable Type’s core configuration file,
mt-config.cgi, to customize the behavior of the system.
Whenever Movable Type detects that a new version of MT has been installed, a message will be presented to the administrator confirming that an upgrade did in fact occur. If this behavior is not desired, you can disable this message by setting
NotifyUpgrade to zero (0).