Nodejs is a minor JavaScript runtime, and the backward compatibility is not really an issue:<p>There is breaking changes in the node standard library from time to time. That&#x27;s the reason it was forked into io.js last year, and why they now use SemVer.<p>The real compatibility issue is the web ! I built a small website  for an association several years ago, it still works.<p>What if Google Chrome decided to remove whatever JavaScript features I used at this time ?