That is not how the <extension> tags of manifest files work. An extension marked as 'upgrade' can be installed even if the website does not have an earlier version.the first time you install the component, the "method" attribute of the <extension> tag in the manifest file must be "install" not "upgrade".
On the contrary, if the "method" attribute of the manifest file is 'install' and the extension happens to exist, the Joomla installer gracefully stops, as mentioned in the Joomla document Manifest Files - Root Element.
Statistics: Posted by toivo — Fri Feb 09, 2024 10:35 am