What I'm getting at is that there is no need;
Unless there are features necessary or some vulnerability necessary to patch, and the app is working as expected, then it is unnecessary to change;
This is why I mentioned what I did, that notepad is an app built on, or at-the-least used on the premise of responsibility & reliability; If it aint broke, don't fix it, and changing coding requires expensive validation testing, which is an investment of time/money and risk, none of which is necessary for an app that works as intended already.