In 3.28.9 it is no longer possible to load German cadastre based NAS files. Prior (working in 3.28.6), QGIS was able to load these .xml files by creating a secondary .gfs file if not existing.

The file all_plugins.xml will be edited, according to the plugin name, plugin version and its experimental flag or not. In an XML file, the plugin can have two versions : one experimental and the ...