@Gary LaPointe -
But NOT having the line of the code in the file mean that it’s going to do the default function, right? Which would to do be minor upgrades?

The word “default” implies it’s going to happen regardless (of the line of code).

Not necessarily. There are two different ways to control the automatic update functionality:

1. Defining constants in wp-config.php
2. Filters

The available Plugins use the filter method, rather than the wp-config.php constant method. Both are equally effective.