Can the extensions site supply extension update xml automatically, or host it?

I have created a spellchecker extension for Libreoffice on extensions.libreoffice.org. At the moment, users have to get new versions manually. I’d like to get automatic update via the ‘manage extensions’ menu working. (Does this automatic update feature for extensions still work?)

Can extensions.libreoffice.org produce the necessary update xml by configuration? Or host a static update description file? Or will I have to host the update description file on another server?
Thank you!