Current MM still ok on 4s?

Hello,

So I've got (and love) an old MM which I got at release basically. I use it on 4s and with a Neu motor without any problems at all. Of course I'm using an external BEC.

I'm about to get another MM, there have not been any hardware changes that might reduce the reliability of the MM on 4s have there?

I just want to make sure I can use a brand new current MM on 4s with an external BEC.

Thanks guys,