Update to 2.2.14: custom simple files in my child-theme folder

Hi.
Your plugin runs really smoothly, thanks again for that!

I updated to the current version 2.2.14 from 2.2.9
and I’m wondering if I have to go through the .php files in my child-theme / pdf / custom simple folder… I manually did some custom layout and text changes…
everything looks fine though…

Let’s say I don’t have to go through that (copy and do the edits to the new files), does this mean I don’t have to worry with this ever or is it better to look into the changelog file and look if there is mentioned anything that tackles custom edits?

Thanks for helping out.
All the best