From Fedora Project Wiki
Adding {appdata,metainfo}.xml is not enough
Ok, I have added *.metainfo.xml file to my package, and validated it with appstream-util validate-relax, it shown no problem. The package is built in copr, my repository is enabled, but my package is not yet known to gnome-software.
Updates to my package are visible in gnome-software under "OS Updates". What should I do to make packages in my copr repository visible to gnome-software? Page says nothing about it.
— Vandebugger (talk) 18:53, 8 January 2016 (UTC)