[development] Do I need to upgrade my database?

Hi, as part of the Drupal administration user experience survey we are improving the upgrade instructions for Drupal. This was listed as the 5th most difficult administration task. During interviews with administrators we learned that people want to know if they need to upgrade their database or just apply new files as in the recent security releases. I have created a page: Do I need upgrade my database? http:// drupal.org/node/37017 I was told that the changelog ( http://drupal.org/CHANGELOG.txt ) contained this information. But it is not obvious to me. How do I create an official list of which releases require a DB update? Thanks, Kieran