CouchDB v2.1 has been released.
https://github.com/apache/couchdb/releases/tag/2.1.0
I believe there are official RPMs now as well.
http://apache.bintray.com/couchdb-rpm/el7/x86_64/
Seems to work ok with Kazoo v4.1. Does it make sense to start including couchDB config, systemd, RPM etc. in the Kazoo RPMs? At least in the experimental branch.