Joomla! Documentation™

• changelogurl - A link to an xml file holding the changelog. Joomla 4.0 and later will allow you to show a button for the changelog in the extension updater page. More details in how to use it can be found here: Adding changelog to your manifest file
• tags – A list of tags relevant to this version. Joomla! 3.4 and later uses this to determine the stability level of the update. The valid tags are: