There are a number of compilation repos that have Covenant, it does still work, but there is no on-going development of it. My latest version from the deactivated Collosus repo is 1.1.34; 1.1.30 is available on the KodiI and XvBMC repos.
It's probably the same situation with Exodus, no on-going development, but as long as URLResolver is updated, the add-on will continue to work.