extending base controller

[eluser]vecima[/eluser]
It's not much of a change really, it's just that I still wasn't clear as to what the difference is. Thank you for specifying about the URI string access... people accessing my site with "domain.com/Base_Controller/" isn't very aesthetically pleasing I suppose.

I don't personally want to call it MY_Controller (as I just think that's a dumb name) but if I change that prefix and specify my own in the config, might I have to make that change each time I update to a new version of CI?

If I put it in libraries/Base_Controller.php forsaking the "MY_" and not specifying my own prefix I take it CI doesn't auto load it... so does that mean it'll need the "require_once"?