body: Follow on to [At what point and how should I change the license/Copyright notice when I create a derivative?](https://law.stackexchange.com/questions/1121/at-what-point-and-how-should-i-change-the-license-copyright-notice-when-i-create).
  
  
  When an author revises and publishes an updated version of her/his previously published work, does the revised edition count as a new (derived) work for purposes of establishing the Copyright date?
  
  
  For example:
  
  
  First edition: "Copyright 2010, John Q Author"
  
  
  Second edition: "Copyright 2017, John Q Author"
  
  
  I understand that the Copyright of the original would not be extended, but would the revised edition have its own, or would it also expire when the original edition expires?
  
  
  
title: Changing Copyright date notice for a revised edition