It's not integrated in flatpak cli yet, but you can use ostree to do a rollback/...

		cmurf on Oct 15, 2018 \| parent \| context \| favorite \| on: Snap, Flatpak and AppImage, package formats compar... It's not integrated in flatpak cli yet, but you can use ostree to do a rollback/downgrade. https://github.com/flatpak/flatpak/wiki/Tips-&-Tricks