I started using CouchDB around 2010. Overtime CouchDB has been removing more and more functionality and features that made CouchDB great IMHO (e.g couchapps),

I started using CouchDB around 2010. Overtime CouchDB has been removing more and more functionality and features that made CouchDB great IMHO (e.g couchapps), the 2.x (IIRC) made a lot of changes and totally broke a large application and made it too challenging to update so we stayed on a 1.x version (whatever version was last before the big couch merge.) we're moving off of Couch entirely in the future. I'd have a look at Couchbase if you're looking for replication features too.