Regarding learning to code EAs

I am posting here as I can’t seem to leave a comment at
Understanding the Basic Structure of a Forex Expert Advisor

If the author happens to see this
The first article discussed setting up the basic EA using mq5
but the second article is using the mq4 editor
This is likely to leave new coders scratching their heads and wondering what is going on
As new articles are added, I hope that you will stick to either mq5 or mq5 and not mix them