An Update is a process in Drupal CMS that allows users to install new features, bug fixes, and security updates to their website. Updates are released periodically by the Drupal community and can be applied to a website through the administrative interface. Updates are important for keeping a website secure and up-to-date with the latest features and bug fixes.

To apply an update, users must first download the update from the Drupal website. Once the update is downloaded, users can access the administrative interface and select the update from the list of available updates. After selecting the update, users can click the “Apply” button to begin the update process. Depending on the size of the update, the process may take a few minutes to complete.

It is important to keep a website up-to-date with the latest updates. Updates often contain important security fixes that can help protect a website from malicious attacks. Additionally, updates can provide new features and bug fixes that can improve the performance and usability of a website.