ds-bootstrap.min.js

I did change several parts in that file. And if you know what you are doing and keep the original somewhere at hand i do think you'r fine. Offcourse that specific file is only changed on your HD and any other designer/developer that uses Storyline has its own version...and thus not your edited one...thus the changes need to be managed somehow too.

Upfront i thought that each iteration of Storyline, so any update Articulate does, those files get deleted and/or overwritten. That is not the case as i noticed on the last update. Im sure some elements of your local Storyline installation get overwritten but at least in the last update the ds.bootstrap.min.js file not... my published files still work without the 'Big Play Button On Mobiles', that part i changed in my file...