Some API's such as lcb_wait3 still exist in the public APIs.
Note that there was previously a commit that attempted to remove the majority of these.
Build libcouchbase-2.8.5-597 contains libcouchbase commit 0760be5 with commit message: CCBC-1153: rename lcb_wait3 to lcb_wait
Build couchbase-server-7.0.0-3115 contains libcouchbase commit 0760be5 with commit message: CCBC-1153: rename lcb_wait3 to lcb_wait
Note that there was previously a commit that attempted to remove the majority of these.