>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3487496. --> Reported by: [marcus_johansson](https://www.drupal.org/user/385947) >>> <h3 id="summary-problem-motivation">Problem/Motivation</h3> <p>Currently we only show in the detail window of the data output that a configuration file got changed, but not what actually changed.</p> <p>We need to be able to show a diff between the old configuration and the new. Storing the old configuration would also make it possible to do a quick revert of the last action if we add support for it.</p> <h4 id="summary-steps-reproduce">Steps to reproduce</h4> <h3 id="summary-proposed-resolution">Proposed resolution</h3> <h3 id="summary-remaining-tasks">Remaining tasks</h3> <h3 id="summary-ui-changes">User interface changes</h3> <h3 id="summary-api-changes">API changes</h3> <h3 id="summary-data-model-changes">Data model changes</h3> > Related issue: [Issue #3487025](https://www.drupal.org/node/3487025)